Large-diameter heatless rods create flowing, loose curls or relaxed waves 100% vegan satin prevents breakage & friction, gliding through hair without tugging A better alternative to heat styling for healthier, stronger strands over time Why You'll Love This Flexible design bends to secure rollers in place, eliminating the need for pins or clips Comfortable to sleep in & can be worn day or night while air drying hair Great for setting naturally curly or wavy hair & adding volume to fine or straight hair For all hair types & texture Measures 10 inches long with 1.2 inches in diameter. OEKO-TEX® Certified: This certifies that our satin is safe, sustainable, and environmentally friendly.