For this method we use a small micro-cylinder ring to attach extension strands of hair to strands of your own hair. The ring is perfectly matched to your hair colour to ensure the ring attachment is as undetectable as possible. The Micro-Link system is the top of the line revolutionary method of application. It is the least invasive process of extension application. The extension requires adjustment every six to eight weeks. This system allows the flexibility of highligts / lowlights as often as you like! two bags of I-Tipped Hair (Micro-Ring)needed