ITEM NAME:Mini Portable Round Shaped Wire Gauge Diameter Description: Made from high quality thickness steel. The General Tools wire gage is designed to accurately determine the thickness of non-ferrous wire and metals such as copper, brass, and aluminum. Used on non-ferrous metals and wires. Featuring a satin finished, this wire gage is made from hardened and tempered heavy gage steel. Easy to use. Specification: Material: Stainless Steel Color: Metallic Diameter: 8cm/ 3.15inch Package Includes: 1 Piece Wire Gauge Measuring Instrument SKU: DMO0015821261002682.Featuring a satin finished, this wire gage is made from hardened and tempered heavy gage steel. SKU: DMO0015821261002682. Easy to use.