... your hair. convenient and fashionablematerial Foam BNR+spring wire inside+plastic Length15cm,18cm,21cm,24cm. Diameter1.0cm,1.2cm,1.4cm ... requirement.We can produce sponge hair roller,velcro hair roller,plastic hair roller,aluminum core hair roller,hot water perm roller ... you are interested in it,pls contact us immediately. hair curler