The Xco®-Trainer is a practical aluminum tube filled with special granules. Xco® (pronounced as “exco”) means ‘extreme core’, which refers to the core of your body. This is one of the areas, which can be trained particularly well with the Xco®-Trainer. While exercising, the free-moving mass moves back and forth with every movement you make. Because the granules ‘overshoot’ at…
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