Beauty Works Nano INVISI 18" (NEW !!!)A brand new and improved design with uncompromising attention to comfort and durability with superior concealment of hair extension enhancement at the root. The Invisitip Nanobond features a new super strength design that is 2x stronger than other hair extension bonds. Each bond is uniquely colour coded to match every strand, blending seamlessly into the natural hairline. This ensures an invisible, flawless enhancement with no glue and no heat.