Our Flip Extensions Adva tage: 1. Instant Length and Volume: Only 5 miniutes to put or take out. Halo hair extensions is the easiest and quickest way of adding volume and length ever. Don?t need to worry if you are new to hair extensions.2. Super Convenient : Just put the flip hair extensions on your head, pull your own hair over the miracle wire to cover the flip hair extensions. Comb the hair to make them blend with your hair. Then you are ready for a date.3. More Natural &More Natural: no tape, no glue, better hair protection. 100% remy human hair extensions can be dyed, curled or straightened.4. More invisible: with hidden transparent wire, can blend perfectly with your hair color.5. Ajustable Size: by adjusting to the position of hook and then you can tighten or loosen the standby wire whoose length is 9.25 inch. We put 2 more wire in the package. It?s not suitable for people with very fine hair on the top or baldness as the wire may not be well hidden.Our Flip in Human Hair Extensions Specification: Hair Material: Remy human hair can be curled and dyed.Invisible Wire Hair Extensions: one piece per pack.Texture: Straight, and have a natural wave when wet or left to airdry or diffused.Size: Adjustable. Fit the extensions on your head by tightening or loosening the wire.Length: 12inch,14inch 16inch, 18inch, 20inch.Width: 10.9inch.Light Weight: 12?-14??: 70g, 16??-18??: 80g, 20??: 100g. 1 pack is for adding length, 2 packs for adding volume.