Magnetic control design for safe and quiet operation, adjustable movement resistance, suitable for the whole family, thoughtful storage rack, convenient and fast, mechanical triangle design, stable load-bearing without shaking. The seat cushion height can be adjusted, the comfortable backrest is soft and comfortable, the thick steel pipe has strong load-bearing capacity, and the humanized foot pedal is not easy to fall off and slip, making it safer. The rear armrest design makes it safer to ride while lying down.