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1-2 years old
Birthday gift
Wooden teaching aids, Science Experiment Group, Aesthetic painting, and DIY
[Self-collection in Kwun Tong] byjarda Science Circuit Experiment Kit: DIY Gear Rotating Target
Regular price
$499.00
Sale price
$419.00
Discount16%
Details →
Skills Developed:
Fine motor skills
, Large muscle exercises
and Mathematical Logic
- DIY Scientific Circuits and Mechanical Experiment Kit
- Learn the basic physical concepts of circuit diagrams and gear transmission.
- Includes 67 parts and 6 rotating dartboards, improving manual dexterity and hand-eye coordination.
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[Self-collection in Kwun Tong] byjarda Science Circuit Experiment Kit: DIY Gear Rotating Target
Sale price
$419.00
Regular price
$499.00
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[Self-collection in Kwun Tong] byjarda Science Circuit Experiment Kit: DIY Gear Rotating Target - Fun Science Experiments to Inspire Children's STEM Potential
Let your child become a little engineer! This DIY gear-rotating target from byjarda is more than just a toy; it's a complete science education tool. Through hands-on assembly, children can gain a deep and easy-to-understand understanding of the principles of circuit closure and gear transmission in physics, making it an excellent choice for enhancing STEM (science, technology, engineering, and mathematics) literacy.
Core learning value: Physical science and hands-on practice
This experimental kit is designed for children aged 8 and up and emphasizes "learning by doing". Through the assembly of 67 intricate parts in a modular fashion, children need to think about the logical connections between the parts, thereby developing their problem-solving skills.
1. Introduction to Circuit Knowledge
The product provides a simple and easy-to-understand circuit diagram to guide children in learning how to correctly connect wires, battery box, and motor. When the circuit is successfully connected and the motor drives the gears, children will experience a great sense of accomplishment and grasp basic physics and electrical concepts.
2. Gear Transmission and Mechanical Structure
By observing the process of a large gear driving a small gear, children can intuitively understand the transmission of mechanical energy. This lays a solid foundation for learning more complex mechanical engineering knowledge in the future.
3. Train hand-eye coordination and concentration.
The set includes 6 rotating targets. Once assembled, children can try shooting at the moving targets with arrows. This not only increases the fun of the toy but also effectively tests and improves children's hand-eye coordination and reaction speed.
🔧 Assembly difficulty: Advanced (suitable for students with basic hands-on skills or those accompanied by parents)
High-quality materials and safe design
This product is made of high-quality PP material with rounded edges to prevent hand injuries, ensuring children's safety while exploring the mysteries of science. The modular assembly method requires no complicated tools, making the assembly process smoother and more fun.
Product Specifications
| project | Specifications/Quantity |
|---|---|
| Applicable age | 8 years or older |
| Total number of parts | 67 parts (including 6 rotating targets) |
| Packaging size | 25 x 20 x 6 cm |
| Product Dimensions | 16 x 16 cm |
| Main materials | Environmentally friendly PP plastic |
| Power requirements | Batteries must be provided by the customer (as shown on the packaging). |
| Place of origin | made in China |
A variety of science series are available.
In addition to the "Rotating Target," the byjarda science series also offers a variety of experimental kits based on different principles, enriching children's scientific exploration journey:
- Electromagnetic Maze: Learn about electromagnetic induction and circuit stability.
- Painter: Exploring the geometric aesthetics driven by mechanical linkages.
Customer Notice and Disclaimer
- Product composition and specifications: All product composition, dimensions, weight and specifications are subject to the actual product. Product effects (such as intellectual development, stress relief, etc.) vary from person to person.
- Origin and Packaging: This product may be "Made in China". The packaging or instruction manual may contain simplified Chinese. Please consider this before purchasing.
- Dimensional tolerances: Since all dimensions are measured manually, there may be a small reasonable tolerance (+/- 1-3cm), and there may be minor errors. Please refer to the actual product.
- Color difference notice: All pictures are taken from real objects. Due to differences in shooting light, monitor resolution and individual understanding of color, there may be slight color differences from the actual product. Please refer to the actual product.
- Safety Warning: This product may contain small parts and is not suitable for children under 3 years old. Please use under adult supervision.
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Free door-to-door delivery on orders over HK$400 (excluding residential/remote areas).
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Premium Gift Wrapping & Card Writing
Premium Gift Wrapping Service
Special gifts deserve exquisite packaging services.
We provide a full range of toy gift wrapping services, adding a beautiful touch and a handwritten card to your carefully selected STEM toys.
Warm wishes, beautifully presented. Make important moments full of smiles and make children even happier!
Exquisite Gift Wrapping
Using high-quality wrapping paper and ribbons, wrapped by hand to make the unboxing moment full of ritual.
Handwritten Greeting Card
We write your blessings for you, turning warm wishes into words delivered with the gift.
Billing for Multiple Items Instruction
This service is charged per 'toy item count'. Please add the quantity corresponding to the number of items you need wrapped.
We will provide individual packaging for each selected toy.
💡 Example: If you buy 3 toys and need all of them wrapped, please set the quantity to 3.
Shipping Policy & Delivery Info
Shipping & Delivery
Shipping Fees & Free Shipping
- Enjoy Free Delivery on orders over $400.
- Free shipping coverage: Single delivery location, including residential/commercial addresses, SF Stores, and EF Lockers.
- For orders under $400, a shipping & handling fee of $60 will be charged.
- SF Express Network:
Remote Area Surcharge
- An extra $10 fee applies to the following areas:
Sai Kung, Clear Water Bay, Shek O, Stanley, Discovery Bay, Ma Wan, Cheung Chau, Lamma Island, Peng Chau, South Lantau (including Tai O, Tong Fuk, Cheung Sha, Mui Wo, Pui O, etc.).
- Other remote area service & surcharge details: Click here for details.
- Note: Additional service fees may apply for remote areas. Please refer to SF Remote Area Table.
Delivery Time & Schedule
- General Delivery Service: Mon-Fri only (Hong Kong).
- Processing Time: 2-4 days after ordering.
(Cut-off time: Mon-Fri 16:00) - Transit Time: Approx. 5-7 days via courier.
- Actual delivery time depends on stock availability. Incorrect information may delay delivery.
Delivery Scope & Addresses
- Each order can only be delivered to one address. Please place separate orders for multiple locations.
- PO Boxes are not accepted as delivery addresses.
- No Delivery: Outlying Islands (except Airport, Ma Wan, Discovery Bay, and Tung Chung) and any restricted areas.
- Please contact Kidrise immediately if you need to change the address.
Tracking & Receipt
- We will provide a Tracking No. after the item is dispatched.
- To change the address after dispatch, please contact the courier directly. Extra fees are borne by the customer.
- Orders may be cancelled without refund if delivery fails multiple times due to personal reasons.
- Door-to-door delivery does not include moving items inside the residence. Kidrise is not responsible for any damage during moving.
Severe Weather Arrangements
- Delivery will be suspended when Typhoon Signal No. 8 or higher, or Red/Black Rainstorm Warnings are hoisted.
- Delivery will also be suspended if weather conditions are deemed unsafe by the courier.
- Kidrise will contact you to reschedule the delivery.
Educational STEM Toy Birthday Gift Guide
Struggling to find the perfect birthday gift? Kidrise has selected a variety of popular birthday gifts for children!
We feature Montessori toys for ages 0-3, as well as STEM toys for ages 3+,
covering the four major fields of Science, Technology, Engineering, and Mathematics.
Combined with our exclusive discounts, let's make it a memorable birthday for your little one!
How to Choose Age-Appropriate Toys?
Struggling to find the right toy or birthday gift? Kidrise has the perfect guide for you!
Toys are essential partners for children to learn while playing. Regardless of the type, they hold educational value.
However, choosing toys that do not match a child's age may lead to disinterest or safety concerns.
Kidrise Expert Advice:
Match the child's developmental age (intelligence, motor skills, and physical ability). Choosing 'slightly challenging' toys can better stimulate a child's potential.
Match the child's developmental age (intelligence, motor skills, and physical ability). Choosing 'slightly challenging' toys can better stimulate a child's potential.
Toy Age Guide & Categories
0-3 Yrs
Early Learning & Montessori
View Collection3-6 Yrs
STEM Educational Toys
View Collection6-11 Yrs
STEM Science Experiments
View Collection11+ Yrs
Advanced STEM Logic Toys
View CollectionReturn & Exchange Policy
Returns & Exchanges
Non-Exchangeable Items
- Bought by mistake / Changed mind after delivery.
- Product damaged by human error.
- Product has been opened or used (e.g., plastic wrap or box seal removed).
- Packaging is damaged, destroyed, or incomplete.
- Color difference due to lighting or screen settings (actual product prevails).
- Loss or damage caused by instructing courier to leave at door/management office.
Cancellation & Handling Fees
For order cancellations and refunds after payment, the following handling fees will be deducted:
Credit Card / AlipayHK / WeChat Pay
Deduct 5% or $30 (whichever is higher)
PayMe / Octopus / FPS / Bank Transfer
Deduct 3% or $20 (whichever is higher)
* We do not offer refunds without cause and reserve the right to refuse unreasonable requests.
Contact for Returns
Please prepare your order number and receipt, then contact us:
📞 Hotline: +852 6672 1884
📧 Email: contact@kidrise.com.hk
* If the item or quantity does not match the order, please contact us immediately on the day of delivery.
Return Rules & Process
- Timing: For quality issues, request an exchange within 7 days of receipt. Late requests will not be accepted.
- Return Deadline: Return the item to the service center within 3 days after the request.
- Proof: Must present the order number and original valid receipt.
- Limit: Only one exchange per order is allowed.
- Completeness: If operation is affected, return with full packaging and accessories; if only part is affected, only that part will be replaced.
- Shipping Fee: All shipping costs incurred for returns/exchanges are borne by the customer.
- Processing Time: Returns take 1-3 weeks (from the date of receipt).
- Refund Method: Refunds will be made to the original payment method (e.g., credit card), subject to bank processing time.
- Disclaimer: Kidrise is not responsible for damage after delivery. We are not liable for delivery failure/delay due to incorrect customer data.
- Returns due to size mismatch or change of mind are not accepted.
Other Terms
- We reserve the right to refuse any unreasonable return or exchange requests.
- Kidrise reserves the right to amend these terms without prior notice.
- In case of any dispute, Kidrise reserves the right of final decision.
Reminder:
Please read the product description and dimensions carefully before purchasing. Feel free to contact CS if you have questions.
Please read the product description and dimensions carefully before purchasing. Feel free to contact CS if you have questions.