The contour bag hangs off the D's on either side of an Australian stock saddle. The high side goes to the back of the saddle. There is a left and a right. The pouch carries a horseman's knife, or a hoof pick (or a Leatherman) . They go as a pair, or on one side only. The bag is 11 inches long, 9 inches wide, with a 5" gusset, when full. The straps are tough latigo leather, the hardware is solid brass on brown bags, nickel plated solid brass on black bags.