Perm rods set the package contains 60 pieces hair perm rods sufficient quantity for your daily use you can also share these perm rods with your family and friends Easy to use these hair curler is convenient to use you just need to separate a small section of half wet or dry hair then rotate the hair around the rod and fix them with the rubber band you can get a nice and beautiful perm within hours Rubber band the nonslip cold wave bar is equipped with a rubber band to keep the hair perm rods from falling which also helps you to fix your hair creating various beautiful curls Lightweight and durable these short hair curlers rods are made of quality plastic which can be applied many times and is durable for long time use the hair perm rods are also lightweight so you wont feel any pressure when you are using them Various size the length of hair perm rods measures 6 cm 236 inch the diameters are 19 cm 075 inch 16 cm 063 inch 15 cm 059 inch 13 cm 05 inch 09 cm 035 inch 07 cm 028 inch