Developed in collaboration with child development specialists, Kaloo's My Grow With Me Sound Shapes will stimulate and amuse your baby from their earliest days. The 4 shapes are all different, so they start to introduce the concept of volume difference, plus they come in a variety of materials and colours to develop your baby's sense of sight and touch and hearing - some have bells inside too. Loads of fun to stack and chew, shake and explore. • 4 stackable shapes with different textures & bells • Stimulating & entertaining • Suitable from birth