Fits Chicago Electric Blue Design Auto-Darkening Welding Helmet. The perfect way to protect your eyes while welding. With its sleek blue design and auto-darkening lens, you'll look good and stay safe while you work. The helmet features a 1/25,000 second switching speed, so your lens will darken as soon as you start welding, protecting your eyes from harmful UV and IR rays. The lens also has a variable shade control, so you can adjust it to the specific type of welding you're doing. The helmet is lightweight and comfortable, with an adjustable ratcheting headband that ensures a snug fit. It also has a large viewing area, so you can see your work clearly. Whether you're a professional welder or just a hobbyist, the Blue Design Auto-Darkening Welding Helmet is the perfect way to protect your eyes and look good doing it.