Cross-Trainer

Elliptical trainer, also commonly known as a cross-trainer.
Exercise machine used to simulate walking, running, or stair climbing without causing excessive pressure to the joints.
Key Features of This Specific Model:
Hybrid Design: This particular unit appears to be a 2-in-1 elliptical and exercise bike, as it includes a seat that allows you to use it as a stationary cycle.
Moving Handlebars: The long vertical poles are designed to provide an upper-body workout while you pedal.
Resistance Wheel: The large black disc at the base uses a belt or fan to provide tension while you exercise.