Specifically engineered to provide the smallest Nano ring hair extension procedure, the Nano bond is significantly smaller and less detectable than any other ring system.The Nano ring technique is the smallest and most undetectable non-glue hair extension technique available which combines strands of natural hair with the extension hair using tiny, curved copper rings, fixing the bond into place for many months. The Beauty Works formula is pre-tipped onto our luxury range of Celebrity Choice hair, resilient against elements such as heat, water and washing. Each pack contains 50g of loose, double drawn hair at 0.8g per strand; the perfect amount of hair for a natural blend.