The Dual Propane Bottle Rack is designed to hold two (2) 40 pounds propane tanks securely in place while traveling with your RV or trailer. Fast and easy to use, just place your tank(s) onto the rack and tighten down the tee bracket to the top of the tanks with the wing nut, It's that simple. Made from durable powder-coated steel. Comes complete with a Tank Base, Steel Rod, Tee Bracket, and Wing Nut. Holds two (2) 40 Lb. propane tanks.