Synthetic Gun Oil Ideal for all climates Reduces friction between mating surfaces Will not gum up or lose viscosity under extreme temperature variations from -55 deg. F to +300 deg. F A natural solvent, it cleans as it oils Low evaporation rate protects against rust Lubricate/protect all metal sports equipment & has many household applications We can not ship Birchwood Casey Synthetic Gun Oil using air services. Please consider this when you choose a shipping method.