DiveOptx Stick-on lenses turns any dive, swimming or ski goggles into bifocal magnifying glasses. Perform tasks easily underwater or out in the field. It's amazing what these wonderful stick-on lenses will allow you to see. Just add water and adhere to the inside of your mask. These large 1.6 inches diameter lenses gives you an even bigger view of your surroundings and are removable and reusable offering great value for money.   They can be trimmed to size and positioned anywhere on the lens. Take DiveOptx Stick-On lenses on your next dive, swim or ski trip for a whole new experience. Designed for use with all face and eye covering masks. LARGE 1.6 inch diameter for a wide field of vision.