This is a elastic knot hair tie, it is made of elastic polyester. The ends of the band are tied together, making it great to use as a hair tie or wristband. This hair ties set is perfect for women and girls of all ages. An everyday essential that is perfect for creating ponytails, braids or pigtails. They will look good in your hair as well as on your wrist! 7 7/8" L x 19/32" W