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OG Happy

STEAM Circuit Science Experiment Toy Kit

Regular price $39.99 USD
Regular price $47.90 USD Sale price $39.99 USD
Sale Sold out
Tax included. Shipping calculated at checkout.

【Enjoyable for Fun】This science toy kit allows your young scientists to explore, learn and enjoy the fun of their own science kit, improve their hands-on and thinking skills, and enable them to focus on the fun of exploration and discovery. I must be very happy with this science kit as a Christmas gift.

【With Color Illustrations】The experiment guide of the toy kit which features color illustrations for clearly showing the steps and scientific principles of the experiment can lead your little scientist to complete the challenges from simple to complex step by step.

【Hands-on Skill】The science toy kit which can be sent as a Christmas gift can also be used to improve children’s hands-on and thinking skills, and enable them to focus on the fun of exploration and discovery.

【Interactive Toy Kit】Due to the amusing science toy kit covers a number of interesting experiments, it can be used to create various connecting shapes. Circuit Science Toy Kit inclues Control Switch*1, Conductor*4, Insulator*1, Small LED Light*10.

【Perfect Gift for Kids】The science toy kit will bring so much fun to kids. Gradually acquiring some basic physics knowledge will stimulate kids' curiosity about the world. Suitable for children ages 4 and up. A great gift idea for Christmas/birthday/school events. 

【Product Specifications】

  • Product Size: 26*21*6.5cm
  • Product Weight: about 500g
  • Suitable Age: 8+
  • Power Supply Mode: Require 4 AA batteries to supply power. Please note that batteries are Not Included.

Free Shipping over $49

We are committed to providing you with the best shipping options, meanwhile ensuring that we provide the very highest levels of responsiveness to you at all times.


Free shipping is offered on orders over $49.

For orders under $49, standard shipping is charged for $5.99. 

We will send you a confirmation email once your order is verified. After verification, in principle, the orders will not be canceled during this period, considering the handling process already start, but we will try our best to communicate with via email or phone to find a good solution.

Allow 1 to 2 business days for processing of Ground shipments.

If we are experiencing a high volume of orders, shipments may be delayed by a few days. Please allow additional days in transit for delivery. If there will is a significant delay in the shipment of your order, we will contact you via email or telephone timely.

Shipping time: This refers to the time it takes from items to be shipped from our warehouse to the destination. 

Normally we ship by standard express, it takes 10-22 business days.  if your address is in remote area (Click here to find the remote area zipcode), the deliver time will be 30-40 days.

Please try your best to provide us with your physical address instead of PO. BOX address. if you provide PO BOX address, we will send you an email to confirm physical address, if no reply within one business days, we have to ship by post channel which will take 30-40 days on the way.

You will receive a Shipment Confirmation email containing tracking numbers once your order has shipped. The tracking number will be active within 24-48 hours.

You may track your order on page TRACKING on our website, or click here to track.

Note: Affected by Covid-19, there will be some delay on the delivery.

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30-Day Return

30-Day Return & Exchange Policy

We want you to feel comfortable and confident when shopping at OG HAPPY, that’s why we offer a 30-day return & exchange policy. If for any reason you're not satisfied with your purchase, you may return or exchange the unused item in its original condition as long as you contact us within 30 days from the delivery date.

Return & Exchange Conditions

1. Items returned without authorization will not be accepted.

2. The time frame for return & exchange must not exceed 30 days from when the original order was received.

3. All items must be returned in their original condition, without scratches or signs of wear, and must not be resized or altered in any way.

4. When returning or exchanging items, customers must use a shipping method that has tracking on it. Returns or exchanges with no tracking will not be processed.

5. For return, any promotional gifts received must be included with the returned items. Otherwise, the retail price of the promotional gift will be deducted from the refund.

Note: Please do not send your return to the address on your package. That is not our return address and will affect the processing of your return.

Contact US

We believe in delivering excellent customer service, and will do everything possible to satisfy our customers. If you have any questions, comments or suggestions, feel free to email us at