Each cone transforms into four basic shapes which can be stacked and nested in a myriad of different configurations. Hix is a delight to fidget with and makes geometry accessible and fun for all ages. It playfully trains visual-special ability, hand-eye coordination and fine motor skills. Smart building blocks that don't hurt when you accidentally step on them nor make any noise when tumbling down. Perfect travel, bath, and fidget toy that is safe for all ages.