... micro ring, Aluminum micro ring with screw and without screw, silicone micro ring Color: Black, brown,blond size:3.4mm*3 ... micro ring, Aluminum micro ring with screw and without screw, silicone micro ringColor: Black, dark/med /light brown, Auturn, BlondQuality: ... inside, outside 5mm, 3mm height Micro Rings: 2 styles available Silicone Micro rings:Shorter and slightly wider than copper micro rings ...