The extension can last for several months, depending on how fast your hair grows. Eventually, the microcircle will have to be removed, or moved up to the scalp again.This nano ring can be well hidden in your hair. Makes hair look natural and beautiful.There are 7 colors for you to choose. Meet most hair color needs. Size: about 3.0x1.5x2mm (outside diameter x inside diameter x length)Material: copper nano rings with silicone inside3.0mm nano rings nano beads with silicone inside for nano tip hair extensions Dark brown Brown Dark blonde Black Gray blonde Light brown Blonde.
