Resistance system twin hydraulic cylinders. Rowing action independent single sculling action. Forward and backwards rowing with sculling (wrist rolling, wide arc) motion. 5-function exercise monitor with calories (theoretical calorie burn), counter (no. of full strokes), distance, tempo and timer (minutes / seconds) modes. Tension control simple 'T' knob adjustment. Infinitely adjustable. Oversize pivoting footplates with velcro style straps and rear frame incline adjustment to increase exercise intensity. Gross weight 18kg. Maximum user body weight 110kg / 17.2st. Size built (H)65, (W)71, (D)139cm. Requires 2 x AAA batteries, not included. Packed flat for home assembly.