Jacobs Ladder automatically adjusts to match your speed. The faster you go, the faster it goes !! The patented treadmill climber designed for fitness professionals to provide peak aerobic endurance and anaerobic conditioning. Shoulders: Jacobs Ladder involves upper body, arms and shoulders increasing cardiovascular activity and providing total body benefits. Lower Back: Natural climbing position reduces stress and pressure on back and hips. Legs: Long dynamic climbing stroke insures a wide range of leg and lower body muscle utilization. Knees: Low impact activity mitigates strain on joints. Tether: Adjustable belt and tether line activate climbing system. Climbing system automatically adjusts to desired speed and breaks to a complete stop when climbing stops. Console: Easy to use microprocessor monitors speed, calories, distance, time and heart rate. Professional Advantages: Reasonable cost relative to alternative aerobic equipment. Small footprint, to minimize the floor space required. A unique exercise alternative that provides a competitive advantage. Specifications: Frame: Welded Tubular Steel Weight: 260 lbs Size: 65.5"H x 31.25"W x 76"L Power: 115 V/AC/ 5 Watts Angle: 40' Non-Motorized Warranty: 4 Years on all Parts; 1 Year on Labor from the date of purchaser invoice.