Features:Diameter: approx 3cm/1.2 inches.3 standard for your option: 023/.030 Knurled Groove/ 030/.035 Knurled Groove/ 023/.030VGroove/ 030/.035VGroove.Made of high quality stainless stee, anti-rust, durable, sturdy & long for time service.Suitable for ESAB- Mig Welder, welding accessories.Package included 2 pieces/set.Specifications:Material: stainless steel Diameter: approx 3cm/1.2inType: 023/.030 Knurled Groove/ 030/.035 Knurled Groove/ 023/.030VGroove/ 030/.035VGroove(optional)Note:Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item.Package includes:2x Drive Roll