Material These hot roller clips are made of high quality plastic, high strength, good toughness, heat resistant, can be used with hot or cold rollers, will not harm your hair, so you can rest d to use. Package In this package, you will get 12 hair perm insulation clips, which is enough for your daily styling, and you can also share them with your family or friends so they can have the perfect curly look too. Advantage These perm clips alternatives have metal springs, which are flexible and will not deform when pressed repeatedly; they can hold more hair and are easy to use. Unique Design These hair perm insulation clips have claws of varying lengths on both sides, which are stable and can firmly fix the curling cylinder in place, but will not leave traces on the hair. Fit Most Hair Curlers These hairdressing tools fit most small, medium, large and jumbo curlers and heated curlers within 2.36in/6cm to create a beautiful, natural looking curl for you.