As what Josh said, the first picture is a plastic wheel cover / hubcap. The second picture is actually alloy wheels. The first picture is a cover to be placed in front of the black steelies.1st pic is wheel covers, 2nd pic is actual wheels. Which one do you have?
If you're uncertain as to which you have, take a look at the front wheels, if you can easily see the brake calipers and rotors then you have alloy wheels.