Wasting time to hot water set curls is a thing of the past. Afri Naptual Quick Curlon Cassie Curl 20" is the fastest crochet installation around. Quick Curlon™ comes ready to go, with its curls pre-looped and designed for fast installation. Afri naptural Quick Curlon Cassie Curl 20" is soft with a natural texture feel, constructed with Toyokalon synthetic hair that is breathable and matches natural hair beautifully! 20 curls per pack 4-5 packs recommended for 120' style Heat NOT recommended.