Material: copper micro ring, Aluminum micro ring with screw and without screw, silicone micro ring Color: Black, brown,blond size:3.4mm*3.0mm*6.0mm, color: black,brown,blonde,dark brown,light brown,light blonde,etc.100pcs per jar,1000pcs per bottleMicro Rings,Micro Links, Extension tube Size: 3. 00mm, 3. 50mm, 4. 00mm, 4. 50mm ,5.0mm,copper flare beads, we have 3 sizes: 2.8X2.2X7.0mm, 3.0X2.4X7. ...