The baby safety helmet offers most ideal protection for toddlers during crawling/playing/learn walking. Lengthen Velcro --adjust the size, can suit with different infant head Super Lightweight and Breathable --offers maximum safety with comfort for your baby Protective Strip --protective strips with high-quality sponges can fully relieve the pressure of collision when the baby falls, avoid head injuries. 1.MATERIAL:cotton and sponge 2.Color： Pink/white/Blue/Light pink with printing（can choose） 3.Size：adjustable between 18-22 inches(45-55cm) 4.Washable