Wynns H.P.L.S. Transmission Treatment and Stop Leak Improves gear shifting and stops oil leaks. Reduces wear caused by metal-to-metal contact by reinforcing E.P. additives in gearbox oils. Provides hydrodynamic lubrication under high charges and at high temperatures. Prevents and reduces vibration noises of gears and bearings. Lowers cold temperature viscosity for immediate lubrication at cold start. Dimensions: 19.70cm x 15.00cm x 5.20cm Weight: 0.16kg