Feature: The product is made of high quality stainless steel, which is not easy to rust and has a long service life. It is processed by high-precision machines with smooth lines. The surface is polished and smooth. The product is used for welding wire feeding machine. Make your welding easier. Specification:Material: Stainless steelDiameter: 30mm / 1.18in Thickness: 10mm / 0.39in Inner diameter: 22mm / 0.79in Model: 0.8mm; 1.0mm; 1.2mm (Optional)Package list:1 * Roller wheelNote:The actual product color may deviate from the photo due to light.There may be a slight deviation in the measurement of product.