SOFT EDUCATIONAL SENSORY BALLS 15 PIECES Soft - the puzzle pieces are made of soft silicone, so they are safe to play with even for the youngest children. Sensory - each element has an interesting texture that will stimulate the baby's touch sensitive. Educational - there are numbers and mathematical signs on the blocks, thanks to which the toddler will master the basics of mathematics in a pleasant way. Technical parameters: Age: 6m+ Material: silicone