Features: brand new and high quality High quality replacement feeding rolls for welding wire feeder system of MIG/MAG welding machine. It is made by stainless steel, high and precision and strength, brings long life and smooth feeding. It provides very stable feeding through the pushing system, high efficiency even in lower feeding speed. V-Groove for Carbon Steel Wire i.e. ER70S-6, Copper Wire i.e. CuSi. U-Groove for Aluminium Wire i.e. ER4043, ER5356. It is designed for LRS-775S, SSJ-29, or similar. Specifications: Material: Stainless Steel Size:Sliver Mixed Size Type:V 1.0 to 1.2/U 0.6 to 0.8 Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package includes: 1 x Welding Feeder Roll