Material: fabric, eva Size: as shown in the picture Package Contains: 6pcs Features:​​ 1. ​​Zero Heat Technology​​: Safe EVA foam prevents scalp burns & hair damage, ideal for thin or chemically-treated hair. 2. ​​Overnight Wave Builder​​: Roll damp hair before bed, wake up with salon-level waves (no morning styling time). ​​3. Gentle Non-Slip Grip​​: Textured foam surface holds hair firmly without pulling or creasing. ​​4. Travel-Ready Kit​​: Ultra-lightweight rolls fit in makeup bags for hotel styling. ​​5. Damage-Free Removal​​: Simply unwind rollers - no snagging or breakage versus velcro types. 6. ​​Deep Wave Memory​​: Create defined S-curves or beachy waves based on rolling technique. Note: 1. Due to differences in lighting and screen settings, the color of the item may vary slightly from the picture. 2. Please understand that the size will be slightly different due to different manual measurement methods.