No Heat Damage: Hair Curlers Rollers are made of natural PE fabric material. But don't recommend sleeping with them.^ Easy to Create Spiral Curls: DIY your favorite wave hairstyle, suitable for most hair condition,long or short hair, thin or thick hair.^ Usage: Pull the hair into the curler with the hook. Remove hair curlers when the hair is dry and spray with hairspray. Pulling or snagging may occur if you hook too much hair at once.^ How to Get Layered & Textured Hair: Apply curl-defining cream to comb the hair and divide the hair into several sections. Then put the hair curlers in order. If you have never done your own hair before, please learn the steps of barber placing curlers. Practice makes perfect.^ Warm Tips: Don't disassemble the wand after assembly. If you have any questions, please don't hesitate to contact with us.^