FROGLUBE is a cutting edge bio-based lubricant made from a USDA Certified Food-Grade proprietary formula. It is a non-toxic substance that dissolves carbon on contact. It has a heavy specific gravity, which enables it to season the metal by absorption deep into the pores. Using FROGLUBE results in a durable dry slick wax-like surface that reduces friction, eliminates fouling, and destroys rust. FROGLUBE is safe for plastic, urethane, nylon, and wood. FROGLUBE will give your weapon many extended years of service. RSR - LUTHMBA-3K308-M