Powerful, long lasting formula (1.25oz)nClear gel leaves no colored residuenConcentrated, provides up to 600 applicationsnNon-abrasive: safe for all tempered glass lensesnNon-toxic, biodegradable and alcohol-freenEnhance your underwater visibility with a simple application of the U.S. DIVERS Sea-Clear anti-fog gel. This clear gel is safe to use on all tempered glass lenses and leaves no colored residue behind. It's highly concentrated and should be used on dry dive masks before they are submerged in water.