The TheraBand Soft Weight Ball is a 4.5-inch vinyl-coated weighted ball designed for isotonic strengthening exercises in rehabilitation and training. Unlike dumbbells, the ball shape allows for a natural, functional grip and can be used for unilateral or bilateral exercises, thrown against a rebounder for plyometric work, or held during rotational and shoulder movements. For climbers, it is useful for shoulder strengthening and scapular stability exercises, rotator cuff loading, and upper extremity conditioning work where a compact, easy-to-grip weight is more practical than a dumbbell. The 3.3 lb Red version is a practical starting point for most upper extremity rehab programs.