Big Sky Racks SBR1G Sky Bar SteelThe Sky Bar Series is a telescoping system which allows for fit to most vehicles. Its square tube construction provides for optimum, small dimensional strength. Adjustable bracket assemblies assure mounting of most weapons accessories and may be firmly secured by tightening the setscrews (provided) on the backside of each bracket. As with big sky racks BSR series racks, they incorporate high quality construction, thick, non abrasive gun protection