This package includes 5 outside cover lenses for Optrel e680 and e684 welding helmets. These lenses are made by Optrel, a Swiss company known for their high-quality welding equipment. They are specifically designed to fit the e680 and e684 helmets and protect the lens from scratches and damage. The lenses are easy to install and remove, so you can quickly swap them out as needed. With these lenses, you can ensure that your Optrel welding helmet stays in top condition and provides clear visibility while on the job. Order now to keep your welding helmet performing at its best.