Abstract: Disclosed is a triceps exercising apparatus. A support harness comprises a neck band and pectoral flaps extending from the neck band in each direction. The neck band and pectoral flaps may be configured together as a unitary structure or as separate structures. In either case, the neck band is placed at the rear of the base of the user's neck, and the support harness is draped over both of the user's shoulders, so that each pectoral flap rests over one of the clavicles. Attached to each pectoral flap and descending therefrom is an elongated elastic element, such as a bungee cord. The lower end of each elastic element is secured to a D-shaped hand stirrup. In embodiments in which the elastic elements are bungee cords, the upper hook of one cord is looped over a hook secured to the lower portion of each pectoral flap, and the lower look is looped over the top of the respective hand stirrup.