【Walking Pad with 4% Incline】Compared with a regular walking machine, our walking pad able to a 4% incline, creating a condition like a little hill for walking. 【Multiple Shock Absorbers】Equipped with 8 silicone shock absorbers, 2 shock-absorbing cushions, and 5-layer non-slip walking belts, the walking machine treadmill aims to protect your knees and promote your fitness experience.