Exercise Ball - Professional Grade Anti-Burst Fitness, Balance Ball Pilates, Yoga, Birthing, Stability Gym Workout Training Physical Therapy PROFESSIONAL GRADE exercise balance ball. The ProBody Pilates ball is intended for core strength, balance, back rehabilitation and for toning and sculpting the upper body. The large balls are also used to aid pregnant women in delivery. INCLUDES ACCESS TO STABILITY BALL EXERCISES. The Swiss ball helps to focus on thighs, butt, ab workouts, pelvic floor, balancing, and other specific muscle targets and aerobic exercises. Use big sizes to remain active at work or home when used as a seat. SUPERIOR LOW-ODOR MATERIAL that is free of the six common harmful phthalates: DEHP DBP BBP DINP DIDP and DNOP. Non Rubber PVC, considered antiburst up to 600 lbs. RECOMMENDED BY TRAINERS AND PHYSICAL THERAPISTS and for good reason. Exercise balls are perfect to increase balance, abdominal strength and flexibility. Not only for crossfit, but also good for active sitting as a desk chair in an office home or seating in a classroom. We stand behind our products. Made to be burst resistant. Should it burst we will gladly refund you as well as provide a new Swiss ball. Shorter than 5&#039; 2&#034; : 45 cm From 5&#039; 2&#034; - 5&#039; 8&#034; : 55 cm From 5&#039; 8&#034; - 6&#039; 3&#034; : 65 cm Over 6&#039; 3&#034; : 75 cm BLUE: 45, 55, 65, or 75 cm all with hand pump, two plugs, plug remover and exercise guide. BLUE: 55 or 65 cm with exercise guide, but <span class="a-text-italic">NO PUMP</span>.  This options is great if you already have a pump. SILVER: 45, 55, 65, or 75 cm all with hand pump, two plugs, plug remover and exercise guide. SILVER: 55 or 65 cm with exercise guide, but <span class="a-text-italic">NO PUMP</span>.  This options is great if you already have a pump. PINK: 45, 55, 65, or 75 cm all with hand pump, two plugs, plug remover and exercise guide. BLACK: 45, 55, 65, or 75 cm all with hand pump, two plugs, plug remover and exercise guide. PURPLE: 55 or 65 cm all with hand pump, two plugs, plug remover and exercise guide. AQUA: 55 or 65 cm all with hand pump, two plugs, plug remover and exercise guide.