... . Stair machine to work deep muscles without putting exreme pressure on bones and joints Effective aerobic exercise and sculupture your hip ... . Effective to the leg, abdomen, thigh and lower body. Electronic meter: Time, distance, count, total count, calories Size: 370 x 440 ... 'q: 560 sets 40'q: 1140sets 2012 New As Seen on tv Twist and shape stepper