Rolling shiatsu, scraping and deep kneading functions work together to ease foot and calf tension while constant heat warms cold feet and supports circulation. The 20 x 12.5 x 8.5 in electric massager fits feet up to US size 13.5 so it can accommodate larger shoe sizes. A rotary supporting stand lets you tilt the unit to target feet, calves or arms, and also acts as a handle for moving it between rooms. Three massage modes and three speeds allow you to adjust intensity for different users or times of day. A timer helps set session length, and detachable zippered covers can be washed to keep the interior clean over time.