Stack, learn and play with these soft chunky activity cubes! Stack the cubes in order to create 4 different scenes of the alphabet: a, b, c, d, 1 to 4, shapes and patterns, Charlie Caterpillar puzzle. Squeeze the ball to hear a fun melody! Each cube is hollow and can be inserted into the next cube size, making a fun shape-sorting game and allowing easy storage. Encourages development of sight, touch, sound, fine motor skills, cognitive skills, musical awareness, imagination and exercise. Suitable from 6 months.