A perfect first stacker for baby! Inside each textured cube is a ball that rattles. But it does more than that! As little ones stack the cubes onto the elephant roller and onto each other, the weight of each ball aligns them and holds them in place. Each soft blocks is square shaped and can be placed on any of its sides, making it easy for younger babies to stack.   The elephant’s wheels make this a great push toy, both with and without the blocks along for the ride. The balls inside each cube also make interesting sounds when baby shakes them.