I'm happy with my decision to go with the Harbinger balance trainer. It's thick material, the nubs are substantial and great for traction, and the other side with small, smooth nubs are great for my office chair. The 13" platform allows me to stand on it with no problem, but because of my balance issues, I chose to purchase two of them for different positions of squats. Sitting on this for abs, in a "V" position is a challenge. I can feel it working just after a few sessions, and I work out 4-7 times a week.
I purchased it with the Mini air pump, with free needle adapter for $10 (see link)
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Thank you, Amazon for top-notch service and excellent customer service.
(23 customers reviews)
Customers Rating=4.0 / 5.0
More Detail For Harbinger 364060 Core Balance Trainer 3 High x 13 Diameter Blue
- Enhances core muscle strength and development by isolating specific muscle groups
- Can be used standing, sitting, kneeling, lying down, and in tandem with exercise equipment such as balls or resistance cables
- Made of soft, pliable PVC with a nibbed surface on one side
- 13 inches in diameter and 3 inches in height
- Anti-burst, can withstand 500 pounds of pressure, and can be re-inflated using standard bicycle pump and pump adapter
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