Package:20 PCS/packageMaterial:human hairHair Type: Deep WavyLength:10-24 inchNet Weight: 10"-18"-40g/package; 20"-24"-50g/package Advantages:1.High Quality Hair Remy human hair extensions, salon quality, soft like your own natural hair. Blends perfectly with your hair without damaging it, naturally adding volume, length and thickness to black women's hair. Hair extensions can be reused by replacing with new tape. Our tape in hair extensions can last 2-3 monthes with good care.2. Invisible Tape & Easy to Take In Specially developed high-strength invisible tape. Before installing the tape hair extensions, you can use a straighter to pre-heat the tape to get better adhesion. And after install the tape, use a straighter could make the two tape stay on the hair more firmly.