Invent JNR Cardboard

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Regular price $78.99 Save Liquid error (snippets/product-form line 69): Computation results in '-Infinity'%
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  • Cardboard is a readily available, free and unlimited building block that can be folded, sawed and hole-punched while maintaining its durability. Better still, it can be reused and recycled.
  • Breathe life into traditional curriculum and lesson plans! It facilitates active and intentional teaching while catering to differentiated learning. Perfect for individual work and group projects.
  • With the pride of independent making, it open the door to imaginative play where the child is protagonist in a hack-able world of their own making.


It's an easy to use system of specially designed and reusable kids tools that offer limitless opportunities for creative construction with upcycled cardboard. Encouraging creative thinking, problem solving and imagination, the open ended kids tool kit system teaches children not what to think, but how to think. This 366 piece tool kit for kids includes:

  • 12 x SAFE-SAW JNR. – flexible plastic blade to saw cardboard, not fingers
  • 12 x SCRU-DRIVER – connect cardboard as simply as righty tighty, lefty loosey
  • 240 x SCRU – connects up to 3 layers of corrugated cardboard
  • 90 x SCRU XL – connects up to 6 layers of corrugated cardboard
  • 12 x MINI-TOOL – for parallel and cooperative making
  • + TOOLBOX – packaging opens into a handy sort and store small tool box


  • Package Dimensions 13.07 x 9.53 x 3.7 inches
  • Item Weight 2.74 pounds
  • Manufacturer recommended age 4 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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