The Superslick AlphaSynth tuning slide grease offers a fantastic balance between lubrication and friction to keep the tuning slide in place. The high-quality base synthetic components and long-lasting lubricant formula provides outstanding rust and corrosion protection plus oxidation stability to keep your instrument tuning slides in proper playing condition. This larger shop size tub of AlphaSynth lubricant is USA made and is completely safe for classroom use, making it a favorite of music teachers, repair shop technicians and players alike.