Number of Pieces: Combo Origin: CN(Origin) Type: Other Material: Other Quantity: 20pcs Item Type: Perm Applicable hair: All Item Type: Hair Perm Rods Material: Plastic / Resin Opening Size: Approx. 15.6 x 1.5cm / 6.1 x 0.6in Close Size: Approx. 8.2 x 2cm / 3.2 x 0.8in Feature 1: Plush hair lock, no indentation, no damage to hair Feature 2: Semicircle card cover pressure designs is not loose Feature 3: Further shaping effect Feature 4: No accessories Feature 5: More simple and fast operation