Hair Roller Set: Great alternative to velcro, these rollers come in 42 pieces, all 7-inches with 6 thickness types. Perfect for curling short, medium, and long hair. No Damage to your Hair: These heatless hair curlers are safe to wear during sleep, and will help you achieve the curls that you desire with no heat damage to your hair. Easy to Use: Effortlessly create pretty curls at home with wet or dry hair. You can sleep or go about your daily tasks while wearing them. Wet hair blowdryer yields instant curls. Rod Sizes: 7/8" 11/16" 5/8", 9/16" 1/2 "7 / 16". Using six different rod sizes your hair can be styled anyway from tight to wavy curls. Material: Soft and lightweight foam rollers designed to smoothly grip you hair without pulling on it and causing no damage to your hair. Flexibility: These hair rods can be easily molded into different shapes so you have the freedom and fluidity to style your hair however you want.