Flat-Tip (KeraTip), 40 strands per package. 20" Straight, 100% PREMIUM Remy Cuticle Human hair. This hair can be applied a heat fusion application method. This premium hair will last for months as long as it is the application is properly done. As a professional stylist, I recommend caring for this premium remy hair with Joico Silk Result professional products for lasting healthy results on your natural hair as well as your hair extensions. This Premium Remy hair can be styled like your natural hair using your styling products and tools.