Improve circulation and reduce swelling! Get the benefits of walking while you sit. The Sit-N-Stroll helps improve leg circulation, reduce swelling and relieve varicose veins. Just Sit-N-Stroll while you are on the phone or watching TV. Easy to read display tells you how many steps you have taken, how many calories you have burned and how long you have been strolling! 13.5″ x 14″ (34 x 36 cm). Requires 2 x AAA batteries (NOT included).