This is the Pure Plank board: an app enhanced core trainer that takes your planks to the next level. It has customizable grips to let you work on the right muscles. It has an ergonomic design with a soft rubber surface. There is also a convenient area to hold your phone. Pure Plank has detachable non-slip handles and a magnetic timer.
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This core training board can strengthen your arms and legs and work your core hard. Its app gives you access to tutorials and tracks your progress. Pure Plank has a slim, portable design. It is compact enough to easily fit under your bed after you are done.
[where to get it] [official site]
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