Abstract: A light weight plastic "pan-like" device is attached to any sports swung implement. When attached, the implement is swung in any of the normal stroking motions. The device produces air resistance against the intended motion. With regular, repetitive exercise the arm, shoulder, and back muscles are strengthened. Functional exercise is achieved aerodynamic drag. The devices may be adjustable for a greater or lesser amount of resistance. The devices are quickly locked into place with a simple attachment means. The devices maximize the resistance per unit surface by minimizing weight and optimizing the air capturing features.