Size: diameter 2.0cm Material: Sponge Products: Chinese Society Series perm, is the latest development series. Special cylindrical shape design sponge just curls the hair along the wound, and then flow down the hair growth at the scrolling, you can easily create a curvature of the perfect hair. convenient and time saving. all sea material, soft material, will not sleep with the pain, the next morning there is a beautiful curly hair. If you need, you can inquire,