Just build flat shapes, then ‘Flex’ them into amazing 3D models! Each Flex K'Nex set includes EZ-Build mats that show kids how to build flat shapes that magically transform into impressive 3D models. Each set features 3 exciting models to build, and comes complete with a storage case with handle for easy clean-up and storage.
- Includes EZ-Build mats to make 3 models
- Build flat shapes, then ‘Flex’ into 3D models
- Pull-string motor for moving action
- Storage box with handle
- Includes 159 K'Nex Pieces