The hair growth roller can promote thinning hair growth, get healthy and thick hair, simple and effortless. Features: Solve these problems of slow hair growth, bald, hair loss, thin hair, excessive oil, dry hair bifurcates. The particle roller formula contains only premium 600 Grade A titanium, suitable for all skin types. Simple and effortless, you can easily use the roller to soothe and improve skin appearance. Can also be easily used at home. It can help you save more time and money on home use than a salon. Use from the root to activate stem cells that produce new hair, as well as stimulate the regeneration of dead hair follicles. Specifications: Color: Black Item Size: 135 * 30mm / 5.31 * 1.18in Package Weight: 30g / 1.06ounces Package Size: 138 * 30 * 30mm / 5.43 * 1.18 * 1.18in Storage Method: Store in a cool and ventilated place. Packing List: 1 * Hair Growth Roller