Monark Exercise AB 881E Rehab Trainer Arm or leg ergometer designed for upper- or lower-body rehabilitation Pair of crank arms adjusts both vertically and horizontally Includes accessory handles for the hands and pedals for the feet Electronic display shows RPM, total pedal revolutions, and time Measures 18.5 x 21.6 x 21.2 inches (W x H x D); 1-year warranty