Material CharacteristicsPerm Rods Made of high quality plastic + resin material. Perm Rods is safe and reliable, and won't harm your hair. Perm Rods has multiple vents for better saturation and is suitable for a variety of hairstyles to help you create beautiful hairstyles.Easy To UseHair Perm Rods Can be easily clipped to your hair without any tools or rubber bands. It's very simple and quick.Practical And Does Not Hurt HairPlush lock hair designs, your hair will not appear indentation, do not hurt the hair, semicircle card lid pressure designs is not loose, better hair styling effect.The Effect Is RemarkableNo damage to hair, doesn't get stuck in your hair and doesn't need to heat, leaving dry curls plump and soft.Perfect For Styling Needs20pcs, enough for you to share with family and friends, it's a great gift for lady and girls and a unique gift for daughters, girlfriends, wives and mothers.