lasts for months [SEP] i purchased this hair for my young step kid and installed it i am not a stylist and using the crochet method was very easy to learn my step kid loves this hair so much that she has worn it for months now i regularly remove them from her hair soak them in water with dishwashing liquid while i am simultaneously washing her hair and then i reinstall the hair when it is dry she just wears one of those extra long satin scarves to bed to keep the twists from frayinglearning how to install these myself has saved a lot of money i do not even know how to do cornrows so i had to find a method of braiding on youtube that flatly connects braids together these twists have made it through months of a busy tween so they are a good buy for everyone