There are several type of rollers such as tiger eye, rose quartz, lapis lazuli, amethyst, opal, black obsidian, clear quartz, agate, green aventurine. Each crystals have their own properties.Facial Rollers are made of double sided, where one is bigger side for your face, and the smaller size end, for your under eyes. By using your favorite cream, you can use the rollers to help the absorption in your skin. Facial rollers claim to boost blood circulation, reduce under-eye puffiness, minimize fine lines, wrinkles, and a better absorption of products into your skin. Crystals facial rollers have a soothing, cooling effect for your skin, and will calm inflammation, irritation and redness, as well as detoxifying your skin. As they have a cooling effect, they will help minimize pores.