Mount-It. 18 in. Rectangular Black Plastic Footrest Under Standing Desk with Tilt

The MI-7802 is designed to use under a desk or table and takes up minimal space so you can keep your workspace tidy. The large, non-skid surface prevents your feet from slipping off the footrest. Tilt the footrest up to 30 degrees to ensure a perfect fit for your leg length. The textured round surface bumps help enhance stress reduction during the workday; simply move your feet over the bumps and enjoy the massaging effect on the soles of your feet. Keep your feet and legs slightly elevated to help improve posture and strain from sitting improperly.