The Praxair ProStar 45V44 3/32″ Gas Lens PRS45V44 is a high-quality welding equipment accessory made in the United States by ProStar/Praxair. This bag of 5 gas lenses is designed for welding and soldering applications, providing a reliable and efficient solution for professionals in the CNC, metalworking, and manufacturing industries. With its specific model number and brand reputation, this product ensures a consistent and durable performance for welding tasks.