CUBLES Teenage Mutant Ninja Turtles are fun, educational, and entertaining! As a learning toy, these STEM toys spark imaginations, help kids develop fine motor skills and enhance critical thinking and spatial reasoning skills. As a fidget toy, it keeps hands busy! How It Works: First, simply pop out and begin folding the paper pieces, similar to origami. Next, match up the numbers and solid colors, like a puzzle, to start creating a 3D figure, like a toy building set. Finally, use our patented “key” to connect the pieces, which enables the completed characters to remain intact, move around and come to life-like action figures! And best yet… no scissors, tape or glue is needed!