Exerpeutic 4000 Double Transmission Drive 18" Stride Elliptical with Magnetic Resistance and Heart Rate Control Extended user weight capacity of 270 lbs. An 18 inch smooth elliptical stride length provides a comfortable and full range work out, without any strain on the knees or ankles A special engineered sleek and slim design provides the most natural stride motion Dual action handlebars provide a complete upper body workout A strong and durable 3 piece cranking system for high end performance and continuous momentum