Thank you for viewing. With a 3D air structure, it adheres 360 degrees, is absolutely undetectable, and is the perfect item for adding a little volume. Material Composition: 100% Human Hair Size: Length: Approximately 30cm, Base Size 5x8cm Type: Straight Color: Brown (Natural Black and Dark Brown are also available) ※ Because it is 100% real human hair, a few strands of gray hair may be mixed in. You can remove them if you are concerned. * The hair's kinks upon opening can be restored to a natural style by lightly wetting it with water and setting it with a hair dryer.