【Expert Technical Assistance】The GMWD Stair Master boasts the latest in high-tech automatic induction electromagnetic braking and anti-skid technology for maximum safety. When in use, the pedals lock automatically to prevent slipping. Simply enter your information and press start for a secure and effortless workout. 【12 Workout Options】Choose from 8 Preset Programs and 4 Targeted Programs. Including fat burner, calorie burner, intervals and more. Stay motivated with the built-in LED screen(17.3”) displaying your heart rate, calories burned, and other important information. 【Professional Design】This powerful product built with rust-resistant polypropylene, delivers unbeatable durability. Ergonomic handrails to support multiple climbing positions that delivers smooth, quiet performance. Its combination of quality and innovation elevating your fitness to new heights. 【Cardiovascular Benefits】This Stair stepper is combination of cardio and strength training. The stair climbing motion is a low-impact form of exercise, suitable for users with joint pain or injury, In addition it also provides an effective cardiovascular workout, helping users to improve their heart health and endurance. 【Product Dimension】Overall Dimension: 54”×30”×77”; max bearing capacity up to 441lbs; step area: 9.4”(H)×22”(W), 50SPM; step up height: 9". If you have any problem pls feel free to contact us. 【Fitness Tips】Stepper machine also work your hips, giving you strong glutes to protect your knees and back. NOTE: Item will be shipped by LTL.