Just 20-30 minutes DIY your hairstyle by yourself at home! - Easy and simple to use. - Soft and light weight design easy to carry - Time-saving design the balls are super soft. You can go to sleep with them and nd get up the next day with a fresh new hair style - Convenient to use automatically lock in place no pins no clips needed - Simple usage perfect for DIY Usage: - When hair is about 80 to 90% dry after washing curl with the sponge curlers and go to sleep and you will wake up with natural looking curls the next day - Spray little water and curl hair with sponge curlers dry your hair with hair dryer on low heat for about 15 to 20 minutes