Birchwood Casey Gun Oil is a superior lubricant for all climates. Contains PTFE lubricant to greatly reduce the friction between mating surfaces. Will not gum-up or lose its viscosity in temperatures ranging from -55F to +300F. The natural solvency of synthetic gun oil cleans as it oils while its low evaporation rate assures protection against rust. Excellent for lubricating and protecting all metal sports equipment and many household items. Container holds 4.5 liquid ounces.