Sensational Sands of STEM Builders

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Regular price $80.99 Save Liquid error (snippets/product-form line 69): Computation results in '-Infinity'%
Solar Balloon shipping 5.99 flat rate shipping
Anticipated ship date: 2 - 3 days
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  • 12 pounds of special sand
  • 6 molds
  • Safe and harmless with no mess

You no longer need to go to the beach when your children want to build sand castles with the Sensational Sands of STEM Builders kit. Here one can enjoy endless sand castle (and other structures) creation with endless possibilities. This special type of sand is specially designed to be crafted into structures in a clumping and non-messy manner. Your kids will love just how malleable this substance is.


  • Product Dimensions: 6.8 x 4.3 x 12.9 inches
  • Item Weight: 12.42 pounds
  • Manufacturer Recommended Age: 3 years and up

Our SmartKidsPlanet initiative began in 2017 when 3 geeky and dedicated parents saw a gap in the children’s toys and games market. An opportunity was spotted while we struggled to find toys and games for our kids which enriched their minds and guided them toward science, art, math and construction. The trio then knew that their paths were set, establishing an online shop with a comprehensive range of intelligent toys for babies, children and young teenagers.

With offices based in California, our SmartKidsPlanet team enjoys a daily growth in our presence within the children’s educational toys market. We love our new place in life, and we love helping young minds with their growth and skill development, all while having as much fun as possible.


We ship all our products directly to you from our warehouses located in multiple locations in the West and East Coasts.

Processing Time: All orders placed after 2 PM EST will be shipped the next business day. Orders placed after 2 PM EST Friday will be shipped on Monday. 

Orders are shipped and generally arrive within 2 to 3 business days after the order is processed. Tracking information will be sent via email once your order has been processed. The tracking number may not become active for 24 - 48 hrs.

Kindly take note that due to our business utilizing multiple warehouses within the United States, orders of more than one item may arrive as separate deliveries at different times. 

Orders made to PO BOX may take up to 12 days. Additionally, we do not ship to military bases. Hawaii and Alaska

Customer Reviews

Based on 51 reviews
Dhariya Molinaro
Exactly as described

My son loves it!! Great quality great buy will purchase again!!

DeeAnn caracciolo
Very Impressed & Happy

I purchased this for a little boy & he absolutely loves it including his father, who is a Science Teacher ( love the texture & how it does not dry out).

Debby Ver
Great for indoor play!

Hours of play, soft and not as messy as regular sand. We put this in a clear bin with the lid 4 Easy Storage with monster trucks inside and our son loves to play in it all day long.

Dede Boyle
Great product for a very good price.

Great product for a very good price. Sand is as good as the "name brand" sand and if you purchase the 12 Lb amount, you get a very good price compared to the smaller amounts by any company.

Desmond Marquand
Best product!!!

My kids love it!!! So amazing the best price and the best quality




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