A favorite at G.Willikers! for a while now, KaBlocks is super interactive. What goes up, must go down! Get ready for explosive fun with this build-it-up, blow-it-up block set. Super soft, foam blocks in array of shapes, sizes and colors are stacked on the special platform to create crazy architectural feats - the higher the better! Simply jump onto the stomp pad to blast the structure apart. The kit has it all...thinking, building, experimenting plus physical activity to boot!