Baby Headband 3-Piece Set, Newborn, Cotton, Cute This is the #1 most popular headband on Rakuten. Made of cotton, a gentle material for babies. The elastic band fits babies with head circumferences from 36 to 46 cm. ◆Size ・Band circumference: approx. 40cm ◆Target Age ・0-2 years old *Baby's skin is delicate, so please avoid using the headband while sleeping or for extended periods. Please remove it periodically to check your baby's skin. I purchased this, but my baby disliked it, so it was barely used. It was only worn for a moment for photos and then removed. It has been washed at home. My baby has grown, so I am selling it.