Abstract: An elongated body is provided including first and second opposite sides. A shank-type handgrip projects endwise outwardly from one side of the body at one end thereof and a forearm encircling open frame projects outwardly of the same side of the body at the other end thereof. An elongated shank-type weight support structure projects endwise outwardly of the other side of the body centrally intermediate the opposite ends thereof and is adapted to have conventional apertured disc-type weights mounted thereon. The apparatus comprising the body, the handgrip, the frame and the shank-type weight supporting structure is adapted to be used by a person wishing to exercise his upper arms and shoulders and to develop the "forearm blow" utilized in high school, college and professional football blocking.