HIX is a versatile new construction toy consisting of four convertible cones made of elastic silicone rubber. 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. Finally you have smart building blocks that don't hurt when you accidentally step on them nor make any noise when tumbling down.