Intova Silicone Grease with 2 Tubes For use as a lubricant on the O-rings, such as those in waterproof flashlights or waterproof camera housings Prevent them from drying and cracking and will keep them in tip-top condition Does not contain minerals that can cause O-rings to expand, crack or otherwise be damaged like other industrial silicone lubricants Contains two tubes of silicone grease Dimensions: 3.2 x 0.9 x 0.5 inches