Hair Details Hair Material: real human hair, looks natural and realisticHair Life: 6-12 months (depends on use and care)Texture:Straight/ Body WaveTape: double-sided tape, the glue life is about 1-2 months (the package includes 10 addional tapes for exchangement) Considering light and different displayers, the exact color might be slightly different from it showed in the picture. Specifications Length: 12/14/16/18/20/22/24 inchWeight: 50 gram(12 and 14 inch are 40g)Quantity: 20 pieces How to apply and remove tape in hair extensions Wash your hair. Extensions will last longer if you apply them to clean hair.Make a part across your scalp. Use your finger or a comb to make a horizontal part. You will apply the extensions near the line made by the part.