Abstract: At least four elongated straps of a highly elastic resilient material, such as stiffened rubber, each having a thickened handle portion at the outer end, extend outwardly in divergent directions from a central junction where the inner ends are integrally joined together and forming one uninterrupted structure. The handles are formed to permit one or more to be held with the hand or foot during performance of various resistive exercises that involve stretching the elastic straps. Preferably the strap, handle and junction portions are integrally molded. The amount of muscular force exerted can be varied in different exercises for maximum effect by selecting the number of straps to be stretched and by adjusting the transverse tension applied to one or more straps held stationary while others are stretched longitudinally.