Copper material color (or model) gun color, ancient silver, bright silver, gold, light gold, bronze, black size (or specifications) diameter is 0.3 CM, 0.4 CM, 0.5 CM, 0.6 CM, 0.7 CM, 0.8 CM, 0.9 CM, 1 CM, 1.1 CM, 1.2 CM, 1.4 CM, 1.5 CM, 1.7 CM, 2 CM long jiashan strong garment accessories factory specializing in the production of metal accessories for decades! All kinds of metal air holes are complete in size and specification, the inner diameter size is: 1mm,1.5mm,2mm,2.5mm, 3mm, 3.5mm... 40 mm. Gas eye also known as corns, common corns, wide side corns, flat corns, double-sided corns, rolled side corns, with claw corns, with net corns, oval corns, egg corns, letters corns, U-shaped corns, special-shaped corns, high-foot corns, open corns, folders large circle corns and other styles. Materials are copper, iron, aluminum, stainless steel. The color has the blue bronze, the red bronze, the white nickel, the black nickel, the light gram nickel, the dumb nickel, the imitation gold, the green gold, the light gold and so on, welcome to sample to make to order!