Specially formulated using advanced lubrication technology made for use in "Marine" grade valves, seacocks and any other marine parts that need periodic lubrication. Made from long-lasting PTFE Teflon-based lubricants. Designed to keep marine valve seals and balls working smoothly. Works on winches, hinges, tracks and other boat parts that need to move smoothly. Clear, non-staining and non-toxic lube that works equally well if fresh as well as salt water.