Characteristics: Easy way to curl your hair. No heat, no electricity, no damage to your hair at all. Create Loose Waves, Spiral Ringlets, and Classic Pin Curls. Great for Travel and Refreshment Curls, Anytime, Anywhere. It is washable and light weight, very easy to clean and store, can be reused for many times. Specifications: Material: high quality medical grade soft silicone. Color: Pink / Blue Large roller size: 2.3 cm (inside diameter), 5 cm (outside diameter) Small roller size: 1.8 cm (inside diameter), 3.9 cm (outside diameter) How to use: 1. After washing hair, dry your hair with towel until no water drop. 2. Open the hair curlers, roll the hair you want and close it, adjust the position to ensure that it can understand and cove your hair. 3. Keep it 30 minutes to 1 hour, remove the hair care roller, get natural wave hair! Use hair dryer or hair spray will be better. Package includes: (quantity depends on your choice) Large curling irons + Small hair curlers