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OG Happy

70 Pcs STEM Educational Construction Building Blocks

Regular price $45.99 USD
Regular price $57.99 USD Sale price $45.99 USD
Sale Sold out
Tax included. Shipping calculated at checkout.

【STEM Education Kids ToyThe skeleton joints building blocks allow for open-ended creative play, will help to enhance your children's Science, Technology, Engineering, and Math skills, grow with your child! Include a full-color guide for beginner, intermediate and advanced builders ensures to make all kinds of models successful.

【Learning By Fun 】This DIY building kit including 70 pcs designed to improve your children's creativity and imagination by guiding them to build different models like cars, robots, animals, and anything your kids can imagine! Can develop their hand-eye coordination and problem-solving abilities, visual-spatial awareness, and fine motor skills. It can also improve kids' hands-on, teamwork ability, and social skills.

【Colorful Design】 Kids can use their imagination to b[ring to life any building toy they want with these colorful toys. Bright colors and special shapes are easy to attract children's attention. Focus on creating their own favorite model toys, allowing parents to have their own time to do their own things.

【 Safe & High-Quality 】interlocking blocks are made of superior ABS, durable, zero latex, BPA free, non-toxic and odorless ensure safe play for kids. Round edge design without sharpness, no worry about hurting your kid's little hands.

【Perfect Gift For Children】The kids' gift toy is perfect for 3-12 year old boys and teen girls Birthday, Halloween, Christmas, New Year, and other holidays! This is a great interesting interactive game between family parent-child, brothers and sisters, friends and classmates! 

【Product Information】

  • Product Dimensions: 27.5*18*12cm
  • Recommended Age: 3+
  • Item Weight:600g
  • It has CPC, RH4040, ASTM certification

    Free Shipping over $59

    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 $59.

    For orders under $59, 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

    Customer Reviews

    Based on 3 reviews

    Our little one loves these building blocks. They are certainly stimulating his creativity, which is good in these times when kids are stuck at home!


    Good product for younger kids.The pieces are made well - the color is bright and eye-catching!


    What a great product for the price!! 3year old son loved it. Great for building hand dexterity. Will most likely be buying another one.