Therapy balls aid rehabilitation, fitness, and pain relief through versatile exercises targeting core strength, balance, and flexibility. Large Swiss/exercise balls (45-85 cm diameter) support seated bounces for spinal decompression, pelvic tilts for low back relief, wall squats for leg stability, and crunches for abs sizing matches user height (hips/knees 90° when seated). Smaller massage/peanut balls (handheld or figure-8) deliver myofascial release on trigger points in neck, IT bands, glutes; hand therapy balls build grip strength via squeezing. Pilates mini-balls enhance stability under knees/back during bridges. Benefits include improved posture, circulation, joint mobility, and injury recovery with low-impact resistance.