The Material Is Soft And Flexible There Is No Hard Or Sharp Edges. Material: Soft Eva Resin According to baby ergonomic design, especially fit baby head Safety thickening. 0.3cm thickness elasticity, toughness enough. To meet the market demand, let the baby fall in love with a shampoo cap. Instructions : Gently put the inside of the shower cap fit the baby's forehead. Adjust the back of the shampoo bath cap to match the baby's head. package included: 1 baby shower cap. Stereo hat, sump design effective and rapid separation of water, so that drainage faster, mothers more at ease.the material is soft and flexible. there is no hard or sharp edges. the size is adjustable through buttons. its fit for age group 1-5 years. You may use it during showers, normal daily bathing, as a sun protector or during outing. When the baby plays in the beach or park etc, the shampoo cap can not only prevent the baby from sunburn but also block the sweat from by the hair. Detail Features : Stereo hat, natural water.