Hair curlers set: comes with 28 pieces hair curlers of wave style in 4 different colors, including pink, blue, yellow and green, and with 2 styling hooks for applying the hair curlers, each of hair curlers can be stretching to approx. 30 cm or 11.8 inches, create formal or random, smooth wave curls for hair up to 11.8 inches (30 cm) in length.Easy to apply with amazing results: these hair curlers are made of quality materials for safe and long time use, easy to control, do your entire head of hair in 5 minutes, use of all ages and all hair types from thin, straight hair to hair, make beautiful wave hair without damage, and are comfortable to sleep.Heatless damage: DIY curler is a great alternative to using heated styling irons and will create healthy-looking curls and waves, without damaging your hair, and suitable for dry or wet hair, long or short hair, thin or hair, a DIY solution to your favorite wavy hairstyle.How to use: take a section of your hairs about 1 inch wide while your hair is wet, slide the curler onto the hook through the slit, the hair is then pulled inside the curler with the hook, keep the curlers on your hair for about 40 - 60 minutes until completely dry (air dry or using a hair dryer) Remove the curlers, squeeze and open the top end, then pull the curler slightly to slide it down and out of the hair.Wide application: the hair curlers are great for women and girls to DIY their hair styles, simply tie them up and back with a scarf then sleep with them, you will love this curly hair when you wake up, also suit for dance and cheer, you can also put them in a ponytails, curls will last for days Notes: hairs may require more curlers, most customers average between 10 - 20 curlers per head, depending on thickness of hair.