This pack of 10 genuine Lincoln Electric Magnum Pro Contact Tips is a must-have for any welding enthusiast or professional. These tips are designed to fit welding equipment with a diameter of .045 inches and a capacity of 250/350A. The Lincoln Electric brand is known for its quality and durability in the welding industry, making these contact tips a reliable choice for all your welding needs. In addition to their compatibility with a range of welding equipment, these contact tips also feature a sleek and modern design that ensures optimal performance and longevity. Whether you're a seasoned welder or just starting out, these contact tips are a valuable addition to your welding kit.