It's green, it's gooey, it works great and you NEED this lube for your classic steel hardtail! Long a favorite of old-school mountain bikers, Phil's Tenacious Oil is used to provide ultimate protection and durability for components that have movement with metal-to-metal contact. It's been produced for by the same independent California refinery since 1971! Final blending of rust inhibitor and extreme wear addititves happen at Phil Wood's facility before the product is bottled & shipped. 4oz green container.