Satin construction keeps your hair frizz free & prevents breakage. Great for fine, medium, thick, curly, wavy and straight hair, you can create the perfect classic look without damaging your hair with hot tools. Avoid the heat damage with this perfect alternative to traditional hot tools. Go to sleep comfortably with the Satin Pillow Hair Rollers in your hair and wake up looking beautiful. The soft satin material is gentle on your hair and scalp, allowing you to sleep in total comfort and wake up to perfect curls or waves. OEKO-TEX® Certified: This certifies that our satin is safe, sustainable, and environmentally friendly.