The product is a Hot Wheels 40th Anniversary set featuring four diecast cars, specifically Chevrolet models from 1957. The set includes a '57 Chevy Stocker, a Fuel Injected Belair, and two other Chevrolet cars. These 1:64 scale cars were manufactured in 1996 and are part of the Hot Wheels line celebrating their 40th anniversary. This collectible set would be a great addition for fans of Hot Wheels or Chevrolet vehicles.