All Rite Products PR2 Double Pack Rack For use on ATVs to carry 2 items side by side  rifles, shotguns, bows, fishing rods, shovels, etc. Aircraft grade aluminum mounting blocks attach to tubular/square bars or railings 1/2 to 1 in diameter Internal steel core covered in thick soft rubber; Rubber straps attach over holder for added security; Made in the U.S.A. Holders attach to a horizontal steel bar on each side to make it a double rack Full 360-degree rotation; Firmly grip different sized objects by simply twisting the holder and locking the wing nut