DO NOT DAMAGE THE HAIR - These Soft sponge curlers are not heat, not electricity. They are the best foam curlers for hair to sleeping. SAVE TIME - Using magic sponge foam cushion hair styling rollers before going to sleep, you will get a beautiful curly hair style the next day. Individual Design - Cute candy shape with foam core, Flexible, Durable, Washable, Reusable, makes you feel Comfortable. EASY TO USE AND SAVE MONEY - Keeping your hair 70% dry, then using the foam curlers around your hair. They will work while you sleep. Sponge soft hair curlers can be reused many times Many Kind of Hair Style - for longer hair can 2 rollers use together as 1 hair roller. Most of people 1 roll make one hair wave just like our use way picture. Some long hair use for down half part more prominent perty temperament. Different direction of starting roll hair in or out make different anti warped hair curly wave.Different operation make out different beauty hair wave refer to YouTube Create beauty belong to you. Maybe you are the best beauty with our hair rollers.