1、 We have 5 different sizes of hair perm rods, various sizes of hair perm rods can easily curl hair, enough to share with family and friends. 2、 The length of the curling iron is 7cm/75inch, and the 5 different diameters are 5cm/0.59inch, 6cm / 0.63inch, 9cm / 0.74 inch, 0 cm / 0.78 inch and 2 cm / 0.86 inch, different sizes can meet your different needs. 3、 It is very simple to use the permanent rod and does not require heating; equipped with elasticity, you can curl your hair in a simple and natural way, help you stay away from electric perm and protect your hair. 4、 Made of PP material, with excellent quality and performance, washable, reusable, light, portable, and help to create beautiful wavy hair. 5、 It can be used at home or in the living room, and it is also a good gift for relatives and friends. 20*Hair Perm Rods Material: PP Length: 7cm Diameter: 1.5cm / 0.59inch 1.6cm/ 0.63inch 1.9cm/ 0.74inch 2.0cm/ 0.78 inch 2.2 cm/ 0.86 inch Color: gray, purple, white, light yellow, orange Purpose: hair styling