Universal bracket fits most ATV tubular steel racks or UTV frames up to 2”. Also fits square tubing, great application for pontoon boat rails! Constructed of steel with glass infused nylon plastic fuel pack mounting. 1/4-turn action knob allows for quick and easy removal of the fuel pack from bracket. Bracket design lets you utilize your entire ATV rack. Quick and secure attachment. One bracket required for Fuel Pack Jr. models. Mount the large, 4 gal. Kolpin Fuel Pack vertically on your ATV rack with use vof (2) Fuel Pack Brackets.