Comfort Footrest for SKRUVSTA

The IKEA SKRUVSTA chair is hard on your feet if you prop them on the swivel base. This comfort footrest slides over the top of each arm of the base, keyed in place by the original plastic caps.
Might also work with JULES, SNILLE
SKRUVSTA: http://www.ikea.com/us/en/catalog/products/80121649