Rotary 13998 Riding Mower Arm Rest Replaces: Ariens: 01552900, 715095; Exmark: 107-1887, 108-6163, 110-6569, 69-1180; Gravely: 01552900, 59205800, 715095, 71509500; Hustler: 797480; Toro: 107-1887, 108-6163, 110-6569, 69-1180 Fits Michigan & Milsco seats