Note: The products are sent randomly, not necessarily the pink color in the picture, it is recommended to buy with caution. And this product is vacuum packed; It is recommended to leave it for 3 days before use to restore it to a round shape. Materials: these hair rollers are made of sponge and plastic, soft and light design, safe and comfortable, don't worry to damage your hair, and which is very suitable for women and children. Easy to use: rollers grip the hair without the need for pins and clips; Just open the fixed plastic band wrap the hair on the roller, close the fixed band, go to sleep; Wake up, you can get a beautiful curls. Save time: you can use these foam hair rollers when you sleep, soft material will not make any sleeping problem and can make different hairstyles you want without damaging your hair . Multi-function: these hair sponge rollers can also be as a hair bow to roll up the bangs for daily makeup, face and facial treatment, very suitable for home, hotel, beauty and so on. Size 4 .0 cm