Description: It is made of natural cotton powder and mineral composition, can instantly make your hair denser. The fibers blend undetachably with your existing hair, instantly making it full and thick. Features: Its microfibers stay firmly in place through wind, rain and perspiration for longer-lasting results. Made of natural and non-toxic ingredients, it has no stimulation and does no harm to your hair and won't clog pores. The fibers blend undetachably with your existing hair, instantly making it full and thick. It just takes 30s to take effect, perfect for dating, working, traveling, etc. The hair building fibers work with all hair types and textures. The hair building fibers can be mixed to find the closest matched color to your hair. A specially designed comb to help to present a natural appearance. Specification: Item Type: Hair Building Fiber Optional Colors: Black, Dark Brown, Medium Brown, Light Brown Net Weight: 25g Item Size: Approx. 12.3 x 4.4 / 4.8 x 1.7inch Package Weight: Approx. 85g Package List: 1 x Hair Building Fiber Note: For external use only. If irritation or rash appears discontinue use. Avoid contact with eyes. Avoid inhalation.