speedometer inner cable of this pic is of golden color also means copper coated color. we have ISO9001. speedometer inner cable of this pic is of golden color also means copper coated color. we have ISO9001. 1. Diameter range: 3.0mm, 3.15mm,3.2mm,3.6mm,3.8mm.2. Color: black, white, golden, white(steel color).3. Package: standard export packing.