Permatex Fifth Wheel Lubricant effectively and conveniently lubricates fifth wheel top plates of trailers. Premeasured grease comes in a handy pouch, requires no tools, and creates no mess. Packaging disintegrates leaving no waste. Graphite lubricant designed for heavy duty applications and effective at extreme temperatures and environmental conditions. Designed by a trucker for a trucker. Simply place one envelope on each side of the king pin on the trailer or on each side of fifth wheel plate near the base. Lubricant pouch will burst upon engagement between tractor and trailer.