My Sisterlocks installation took a total of 3 days (8 hours for the first two days and 5 hours for the last). My hair was about 10 inches long, and all natural. My consultant spent two days on the back and one day in the front. The size of my locks are micro to small. I almost gave up on the 2nd day, but I’m glad I didn't, because in the end, I love my Sisterlocks! I’m now part of the Sisterlocks community....yay for me.