DynaDisc is a fourteen-inch in diameter inflatable cushion made out of the same material as a stability ball. This little guy is only a few inches thick, but can withstand up to 2,000 pounds of force per square inch, and offers endless benefits for every fitness level, from beginner to expert.
The DynaDisc works under the same principal as a stability ball- the surface is uneven, challenging your muscles to keep you in proper position. The DynaDisc, however, is flat, so you can stand on it, engaging the stabilizing muscles in your legs and core.
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