- Unique material: made with a high quality and high resistance sponge, soft and comfortable. The sponge regains its original shape even after being pressed or twisted repeatedly. | - Heatless curlers: create beautiful curls while you sleep, without damaging the hair. Suitable for dry or wet hair. | - Portable: easy to carry and use at home or anywhere. You can change your hairstyle according to your mood. | - Suitable for all hair types: transforms straight hair into rebellious curls, perfect for thick, thin, curly or straight hair. Solves the problem of uncomfortable sleep with a simple heatless tie.