Nano Ring Installation CourseNano Ring Hair Extension Installation is one of the most popular methods on the market, it's similar to Micro rings but 90% smaller, lasts longer and less visible. This is the smallest and most discreet method on the market, using no heat or glue to attach your customers will LOVE it! Perfect for all hair types but mainly thin or damaged hair as it's one of the kindest hair extension methods around. This is the favourite in my salon and 70% of my