Baby Teether Toys and Rattles Toy Gift Sets Sound rotation can hold sway to attract baby's attention to promote infant upper limb muscle development and eye coordination. Bright colors are helpful to the perception of color in the early stage of the baby, which promotes the development of the brain. The bell sound can help baby voice distinguish, identify the direction The ability of developing creative thinking in the space of the hair of the baby with the ability of the hair. Safe and clean, different shapes of the handle, more fun