MATERIAL: 100% Japanese A class heat-resisting fibres high quality kanekalon fibre, well blending with your own hair, which looks like real human hair;Wavy bun scrunchie synthetic hair, perfect for adding volume and fullness to a bun or a ponytail, 30 gram;Scrunchie Hair Color: jet black hairpiece;ADJUSTABLE SIZE, very easy to fit with a elastic hair tie for most people;WASHABLE, COMFORTABLE easy and secure fit