Features: 1.The bumps on the rollers can help spread the dye evenly on the hair 2.Made of PP plastic, no hair damage, no static electricity, and no deformation 3.Lightweight and portable, weighs only 1.3 ounces, and is comfortable to hold 4.The wide tooth comb design effectively prevents hair from knotting and is durable 5.The roller can be easily disassembled and cleaned, which is convenient for next use 6.DIY hair at home without going to the hair salon, saving money and time Specifications: Item name: Roller comb set Material: PP Color: Black red Package size: 9.4 x 6.3 x 0.8 inches Package weight: 4.4oz Package list: 3 x Roller comb Our products have been well tested, you can rest assured that your purchase is . Any problems please feel free to contact us first.