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This thing is great! It has sand or something in it so it doesn't roll too easily. It's also very strong and durable. Read morePublished on Feb. 23 2013 by Link77
The Reebok Stability Ball is a great item, it's the corrupt DVD that came with the Reebok Stability Ball which is the problem.
Unfortunate but true.
MY DOCTOR RECOMMENDED A BALL TO HELP STRENGTHEN MY BACK MUSCLES. THIS BALL WORKS JUST FINE. I JUST SIT ON IT ONCE A DAY FOR 1/2 AN HOUR WHILE I READ AND REPLY TO E MAILS A/O LOOK... Read morePublished on March 5 2012 by warmhearted