Each weft of hair is pre-taped with an ultra-thin, double-sided adhesive tab which is then sandwiched with another weft between your own hair. Tape in extensions lasts 2 to 3 months with proper care. You can DIY these human hair extensions or take them to your favorite stylist for install, which takes about 45 minutes. Comes in a loose, natural wave which can be flat-ironed or curled. Air dry hair extensions for a deeper, beach wave.