Health experts agree, walking is an easy way to help maintain health. But sometimes you just can't get out to walk. The Ankle Pumper™ helps you move your ankle with the same heel-toe motion that occurs while walking. This motion helps to pump blood back to your heart, improve circulation, reduce ankle and leg swelling and improve muscle tone and joint flexibility. Just place your foot on the Ankle Pumper and gently rock the device back and forth. 10.5" x 2.5" x 4.5".