Features: 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. Package Includes: 1 x Welding Feeder Roll 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. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it!