The Praxair ProStar PRS45V45 Difusor Gas Lens 1/8″ is a welding accessory designed for use with MIG, TIG, and stick welding equipment. Manufactured by South-Weld, this product comes in a pack of 5 units, making it ideal for multiple welding applications. With its high-quality construction and precise design, this gas lens serves as a reliable tool for improving the control and performance of welding processes in various industrial settings.