WALKING ASSISTANT: With ring design, can protect baby neck and head when they are learning to walk, running and crawling COTTON MATERIAL: The material of the pillow is cotton and Soft Fiber, which can cushion when baby fall. SOFT and BREATHABLE: Baby close skin fabrics, close-fitting use more comfortable and soft AGE: Suitable for kids from 4 months to 18 months. DESIGHN: Back piece protector pad has unique design, cute appearance, let your baby wherever he is a bright spot ADJUSTABLE SHOULDER LENGTH: According to the baby’s size can be arbitrarily adjust the shoulder straps conforms to the baby’s size and design comfortable feeling without tight