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Measure the length from the elbow to armpit to determine your Plank Helper size. 

  • Small: 6 to 8 inches
  • Medium: 9 to 10 inches
  • Large: 11 to 12 inches
  • Contact us at for Special Orders sizing 



WARNING: Consult physician before working out. Do not use this product for anything other than it's intended use. Recommended Maximum Load Capacity is not to exceed 300 pounds. L5, LLC is not liable for injury. 


Secure the Plank Helper before each use. 


SKU: 364215376135191
Color: blue
  • The goal at L5, LLC is to help people achieve the perfect plank!

    Our device instantly engages the core once in position by isolating, stimulating and intensifying the upper, middle and lower abdominal muscles in a single workout!

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