100% Guaranteed for craftsmanship and quality,durable enough for your daily using. Reusable, washable by water,and easy to store. Carefully design, easy and simple to use, strong modeling,give you natural looking curls. Easy to use hair curling rollers. These can be worn overnight or during the day. keep 15-30 minutes, better use of hair dryer (keep away from 15-20cm). DIY you hair at home,never ever make any damage to your hair. Soft and light weight design, easy to carry, great for travel. No damage with your hair even while you are sleeping. Use this litte and cute hair rollers, you can also be a magic hairdresser.How to use:Step One:Lay hair flat over the inside of the curler.Step Two:Curl the rod under until all hair is firmly in place.Step Three:After you have rolled the hair to your desired place, then press the larger outer edge in.