1.[Hydraulic Drive System]Standard hydraulic cylinder strengthen on the stair stepping fitness machine let you enjoy your stair stepping fitness in a quiet environment without disturbing others. The internal super-energy spring that protects the joints and provides a good cushioning effect. Pay attention that the hydraulic tube need rest after 20-minutes exercises. 2.[Easiest Fitness Equipment]This stepper accelerates the fat burning of the buttocks and legs through continuous stepping. Persistent use can quickly reduce the lower limbs' fat and enhance muscle strength, achieving the goal of lifting buttocks and thinning legs. 3.[Removable Bands]Equipped with removable training bands this high-quality stepper tightens over 20 different core muscles and using low-impact aerobic exercise to help tone your chest back and shoulders. 4.[Absolute Stability & 440LBS Loading Capacity]The loading structure of the stepper is made of 1.5MM thick commercial steel, which ensures absolute stability and 440LBS loading capacity.