Price: $19.99 - $39.99
(as of Jan 13, 2026 02:52:35 UTC – Details)

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MANY BENEFITS: Stretch on this to improve your flexibility, reduce lower back pain, improve your posture, and develop core and ab strength by sitting or exercising on it.
MULTI-FUNCTIONAL: Sit at work or home, lie down and stretch on it, do Swiss crunches, or do many other exercises.
EASY TO PUMP & ADJUST: Insert the pump to inflate. At first, the ball may not measure up to the stated dimensions because the elastic PVC needs to stretch, so inflate again a few days later to reach maximum size; you may want to re-inflate it occasionally.
QUALITY DESIGN: The material is comfortable, durable, and odor-free. Made of thick elastic PVC that will maintain its shape. Weight capacity is 300 lb.
DIMENSIONS: Inflates to 65cm or 25.6″ and weighs 2 LB. Best size for people between 5’5″ and 5’11” in height.