How to Use Hair Rollers1.Start with damp hair or use a spray bottle with water to wet hair slightly. 2. Put the curlers in, then use duckbill clips (if necessary). 3. Use hairdryer to blow-dry hair completely. 4.Once hair is dry, unroll the curlers and gently separate the curls with your fingers To get the volume and nice shape you want, just use a little bit of hairspray or other styling products. Wide Application: You can use these convenient sponge hair rollers at home, also suitable for travel, hotel, beauty place and so on. Also this is a good gift for your friends, family. SAFETY WARNING noPackage Includes: You will get 24 pieces foam sponge hair rollers no heat, each hair roller measures approx. 7.0 cm 2.8 inches long and 1.5 cm 0.59 inch in diameter, combined with 1 piece stainless steel rat tail comb, which is approx. 21 x 2.5 cm 8.27 x 0.98 inches in length and width, nice combination for your hair styling. Safe and Clean: These heatless sponge curlers do not require heating, won't pull your hair, do no harm to the hair, easy to operate and won't take much time, allow you to design a curly hairstyle quickly, safe and considerate tools for you to choose. Reliable and Reusable: These soft sleeping hair curlers are made of foam sponge, the rat tail comb is made of stainless steel and plastic, which are safe and strong, can be applied for a long time, you can enjoy the hair styling at home many times. Flexible and Practical: Our sponge hair curlers volume are proper for various hair types and textures, you can use it make to waves, rolls, curls, air bangs and other shapes for your bangs or tails, highlighting your dressing during a variety of occasions. Why You Choice: These self grip sponge hair curlers do not require heating, won't pull your hair, do no harm to the hair, easy to operate and won't take much time, they work on wet hair. The curls last for all one day, until she washes her hair again. They are comfortable and hold well.In addition when you sleep with hair rollers will not feel uncomfortable.