The Flex Disc is an improvement on the "workout dolly" in practically every way, shape and form.
If you're familiar with a dolly (which is basically a flat "thing" with wheels on the bottom), you know how versatile it can be as training equipment.
It has 8 wheels on the bottom to help with stability and smoother movement.
It also comes in a pair of mini discs for use with hands and feet.
The Flex Disc (and mini Flex Discs) take the concept of the dolly to a whole new level of usefulness in terms of resistance exercises and mobility training.
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