Hair roller easy to roll&remove,soft and won't hurt your ... won't hurt your hair. convenient and fashionablematerial Foam BNR+spring wire inside+plastic Length15cm,18cm,21cm,24cm. Diameter1.0cm,1 ... roller,velcro hair roller,plastic hair roller,aluminum core hair roller,hot water perm roller, snap on magnetic hair roller,wire mesh hair roller and spring net hair roller ...