Warning:Not suitable for children under 6 years. For use under adult supervision Elastic Design: The Headbands for Boys Are Elastic, and the Stretchable Range on One Side Is 20-35 CM, Suitable for a Head Circumference of About 48-53 CM, and Suitable for Most Head Shapes. High-Quality Material: The Sports Headbands Are Made of High-Quality Polyester, Which Is Strong and Durable, Not Easy to Tear, and Has a Long Life. The Sport Hair Band Non Slip Interface Is Wrapped With Silk of the Same Color, Which Is Delicate and Not Obtrusive. At the Same Time, the Colors Are Full and Diverse, Realizing the Matching of Various Sports Suits. Anti-slip Design: There Is a Transparent Anti-slip Strip on the Inside of the Sports Headband for Women Fitness, Which Can Be Firmly Worn on Your Head to Avoid Sweat From Slipping Into the eyes, and It Can Also Help You Better Fix Fine Hair and Avoid Blocking Your Sight. Suitable for Sports: The Boys Headband for Kids Is Very Suitable for Wearing During Sports, It Can Effectively Absorb Sweat and Fix Broken Hair So That You Can Have a Better Sports Experience. At the Same Time, the Headbands Girls Are Also a Perfect Fashion Item, Which Can Be Used as an Accessory for Sports Style and Casual Styles.