Full Body Workout: The stair stepper promotes lower limbs' muscle strength and accelerates fat burning by continuous stepping. Fitted with removable resistance bands to exercise your arms, shoulders, chest and back. Knee-Friendly Design: Features a 21°tilt upper pole that guides your knee movement in the optimal direction. This innovative design helps protect your knees from strain and injury, ensuring that your workouts are both effective and safe. Adjustable Intensity: Use the height adjustment knob to achieve different intensity of muscle workout according to your needs. Lower height could ease to extend the exercise time, high stride will increase the stepper intense to burn more calories. Heavy Duty Capacity: Constructed with thickened commercial steel and precision bearings, DUMOS portable stair stepper machine ensures an unparalleled stability to support 220LBS loading capacity by thousands of tests, let you always indulge in passionate step without any worries. Works Super Quietly: This mini twist stepper with resistance bands utilizes ultra-quiet hydraulic cylinder hydraulic drive system, also there has a silent silicone cushioning pad under the foot pedals to make the stepping sounds under 30dB.