Sensory Book Toys include two themes, jungle tail and farm tail, to help babies understand different animal structures. The content is rich and enough to meet your baby's reading needs. The baby cloth book has a built-in "BB" bell paper design. When the page is turned over or the BB device inside the kangaroo is pressed, it will make a rustling or squeaking sound, stimulating the baby's auditory development and attracting the baby's interest in reading. Crinkle Cloth Books are not easily torn, damaged, or yellowed, and can be used for a long time. The Baby Soft Book is made of polyester fiber, BPA-free, and filled with cotton inside, which is soft and skin-friendly. The edges are sewn firmly and the texture is soft with no sharp edges. Best Gift Sensory Toys 0-6 Months are great tools for your baby’s early learning and education. A great gift choice for Christmas, birthdays, Halloween and Children's Day.