This is a set of plastic or metal wheels and rubber-like tires for detailing car models.
Here's a nice set of 18-inch Veilside Andrew Baccarat wheels with rubber tires. Includes polycaps for installation, although you may need to tweak them a bit to get them to fit your axles, depending on the type of car you're slappin' 'em on. These wheels are "handed," featuring unique left-side and ride-side patterns to the design, so you get the same directional "flow" on both sides of the car. Kinda limits your 7500-mile tire rotation options, but it sure looks cool!