1. Perm self-gripping rollers 1. Material: plastic 2. Color: assorted color 3. Size: dia 20mm----45mm Salon perm rods self-gripping hair rollersEasy to use, No pins or clips neededyou should just keep 15-30 minutes, better use of hair dryer With this magic item you can design your own hair style by yourself in random at homeAnd never ever make any damage to your hair! It is plastic  core which make you feel comfortable. Color: assorted colorSize: dia 20mm ~ 45mm Quantity:12 pcs / opp bag