Description The Stairmaster 4400PT Stepper features an upright, rail-less design which encourages an improved exercise posture for the best lower-body workout of any stair climbing machine. This Stairmaster is the most space-efficient Stairclimber on the market (it fits in less than 2' x 4'/61 x 122 cm of floor space), and yet is extremely effective for a wide range of climbing exercise and conditioning needs. Patented, independent pedal geometry ensures safe, biomechanically-correct movement. Features Brand: Stairmaster Space-Efficient (fits in less than 2' x 4'/61 x 122 cm of floor space) Armless Exercise Programs: Quick Start, Manual, Fat Burner, Calorie Burner, Speed Intervals, and Heart Rate Zone Display Readout: Manual, Fat Burner, Fat Burner Plus, Steady Pace, Rolling Hills, Aerobic Training, Cross Country, Speed Training, Fit Test, Levels Fitness Tests: Multi-stage Fit Test and CPAT Fire Fit Test Step Range: 1 to 14 inches Step Rate: 26 to 174 steps/minute Resistance Levels: 20 Reading Rack and Accessory Tray Power: 110V (Standard 3 Prong Plug) Tech specs Max User Weight: 300 lbs (136.1 kg) Product Weight: 126 lbs (57.1 kg) Dimensions: 41"L x 22"W x 69"H (104.14cm x 55.88cm x 175.26cm) Warranty: 90 Days parts and Labor only Extended warranties are not available on this item