Walking Wings helps baby learn to walk balancing more naturally, hands-free, and experiencing fewer falls. This unique padded support vest easily fastens around the chest of the baby and has two adjustable, detachable straps with padded handles for your comfort. It's healthier for baby's shoulders (no tugging on little arms) and kinder to parent's backs (no more bending over!). Pediatrician recommended for babies learning to walk. Walking Wings is based on average chest size from 9 month to 4 year old children. Walking Wings fits from a 19" to 26" inch Chest Circumference.