Advwin portable leg and arm trainer is worth having. This Mini pedal bike is very suitable for indoor use. If you think it's troublesome to ride a bike outside for exercise, you might as well try this Mini exercise bike. It can help you experience the feeling of riding indoors and help you exercise your legs and arms. It also has an adjustment knob to adjust the resistance according to your different needs and develop a training plan that suits you. The builtin LCD display records your exercise data.