Sufficient content: you will receive 30 pieces hair curlers of wave style in various colors and with 2 styling hooks for applying the hair curlers Safe and flexible: our no heat 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 thick hair, make beautiful waves or curls without damaging the hair, comfortable to apply even when sleeping No heat damage: this heatless spiral curler is a nice alternative to using heated styling irons and will create delicate curls and waves, without damaging your hair, and suitable for dry or wet hair, long or short hair, thin or thick hair, a diy solution to your favorite wavy hairstyle Effortless to apply: take a section of your hairs about 1 inch width 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 15 - 20 minutes until completely dry (air dry or using a hair dryer); Remove the curlers, press and open the top end, then pull the curler slightly to slide it down and out of the hair Practical tools: the wave style hair rollers are good for women and girls to diy their hairstyles, 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: thick hairs may require more curlers, most customers average between 10 - 20 curlers per head, depending on thickness of hair