This is the fan blade and motor, as a complete assembly.
2 fans are required, and are sold individually.
This unit is made by JP Group is manufactured in Denmark. It is not one of the cheap Chinese knock-offs found on eBay and other sites for a lesser price. Those substandard Asian units are generally, unbalanced and poorly constructed and often vibrate severely when running. As with anything in life, you get what you pay for.
See also, separate fan motor shown below, limited quantity available on just the motor. (one remaining) The fan blade is not available as a separate item.