Encourages the development of hand-eye coordination and imaginative play. The different shapes enhance hand-eye coordination and motor skills. The chunky design of the numbers pieces ensures babies can easily grasp and play with them. Since it’s 100% silicone it’s very easy to clean and it’s soft for the baby to pick up and chew on. The little shapes can be used for teething, sorting, and stacking! The numbers are easy for little hands to hold, and the smooth silicone has a pleasing tactile effect. The shapes can be sorted and placed back onto the board using eye-hand coordination.