SA Sports X-Bow Glide is a crossbow lubricant and serves to increase the longevity of your crossbow string and crossbow. X-Bow Glide will prolong your crossbow string�s life as well as increase your crossbow�s speed. Use this lubricant sparingly on your crossbow; it can be applied to the rail, axles, string serving, cables, and other moving components. This lubricant formula is premium grade Teflon and silicone saturated; the 15-milliliter tube is easy to take with you on the go so you can perform crossbow maintenance on a hunt if necessary. X-Bow Glide delivers superior lubrication to enhance your crossbow�s string life expectancy.