?Color Choice? There are various balayage, highlight, ombre color itip human hair extensions, giving you multiple options to make different hair style. If you are confused about it, we are glad to help you match the color. Can be restyled under 356?, dyed to darker color. Cannot be bleached to lighter color. ?Important Tip?After wearing for a period of time, due to shampooing, combing, sleeping and other reasons, the beads may become loose, so we recommend re-flattening the beads every 2 weeks to make the hair last longer. ?Hair Material?Made of remy human hair, smooth and natural just like your own hair. There will be slightly wavy after washing, but it's normal and will blend naturally with your hair after drying. ? Pre Bonded I Tip Hair Extensions?Cold fusion hair extensions human hair, recommend to use with 5mm*3mm*3mm micro ring (including silicone). No heating is required, install firmly, harmless to hair and scalp, very covert. ?I Tip Hair Extensions Human Hair?All lengths are 50g/pack. 14-16inch: 100strands, 0.5g/strand; 18inch: 60 strands; 20-24inch: 50strands, 1g/strand. 1-2 packs for adding volume, 3-4 packs for full head.