Antra Welding Helmet Magnifying Lens Pack of 2, Fits all Antra series helmets and many other helmet brands 2.25 Diopter Make welding more clear for people who needs magnifying. Slide on and fixed! Easy installation! Fits Antra welding helmets Fits lots of other models! Pack of 2 PCs! Very affordable! Size 4.25X2"X0.15"