Roller-Coaster Proof Silicone Hair Band Sports Hair Wig FEATURES: Material: Made of Food-grade Silicone,Not to Human SkinTop Quality,No Gel,No Glue,Very Softest,Very Stretchable,Sweatproof and Water Proof! Easy to Clean! Type: Silicone Sweatproof Seamless Wig Headband Secure Wig without Gel or Glue Available Soft Drop-shaped Hair Band Soft Drop-shaped Elastic Band Lace 4 Colors is Avaliable- Deep / Mocha / Tan / Transparent Weight-25g; Size M-22cmx4cm The transparent silicone wig band is a specially engineered, silicone that makes wearing a wig more secure, easier and comfortable. UNIVERSAL SIZE: Tested on over 100 participants before release, it fits all sizes between 17 to inches (statistically 98% of the worlds population over the age of 12) DESCRIPTIONS: Silicone hair band Weight : 25g Size: Medium Folded length is 23cm, extended length is 24-25cm. Width is 4cm Used for mending hair before wear wig . Packing list : 1 X Invisible Headband