This is the Seasoft SeaVue Concentrated Anti-Fog Pump Spray for Scuba Masks and Swim Goggles - 2 fl oz. Features: Spray it on, do not wipe or rinse off for fog free diving! Will not harm surrounding silicone or rubber support frames Proven, long lasting liquid formula Non-abrasive-safe for all lenses and optics The perfect solution to keep foggy lenses from ruining your dive, always keep a bottle in your dive bag.