3D Developmental Building Blocks

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Regular price $96.99 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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  • Induces creativity
  • Enhance eye-hand coordination and improve problem solving skills
  • Includes 40 Jumbo Pieces - 24 (5.7 inch / 14.4 cm) rods with strong attractions at each end and 16 (2.4 inch / 6 cm) hallow iron balls


Kids love playing with the 3D Developmental Building Blocks! It is an open-ended construction toy and the oversized ergonomic shaped pieces are designed for younger children to explore magnetism safely and learn about its attractive and repulsive properties. Meanwhile, older children will have fun using the pieces to construct various more complex 3D structures. The pieces are light in weight and come in an assortment of vibrant colors - red, blue, green and yellow.


  • Package Dimensions 17.63 x 12.01 x 2.83 inches
  • Item Weight 4.52 pounds
  • Manufacturer recommended age 1 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

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