Product Description : Carbon Express flight rail white stick lubricant increases string life and reduces friction between the rail and string for improved performance. This clean, odorless stick lubricant with silicone effectively lubricates, protects and preserves your archery equipment while also acting as a rust inhibitor for added versatility. Ideal for metal, wood, leather and plastic. It came in a completely different package and looked nothing like the pic. Tried it anyway, works well, I like it. And it last quite a while even during a heavy wet snowfall.