52 Pieces hair perm rods set, 40 pieces plastic hair rollers 4 sizes cold wave curlers perming rods with cotton triangle hair net duckbill hairpin parting comb for hairdressing styling Features: Non-slip design: Each perm rod has a cover and a rubber band to hold the hair firmly in place on the rod, no clips or pins needed, making it more convenient to DIY your own hairstyle at home. Easy to use: Firstly, remove button from the tip of the rod to release rubber band, next wind a section of treated hair firmly around the rod, then pull rubber band over hair and reinsert button in the tip of the rod to secure, finally remove buttons to release hair from the rod when it is completed. Specifications: Material: plastic Color: gray, white, purple, light yellow Size: Hair perm rods: 0.59 inch/ 1.