The product is a new old stock (NOS) Rochester carburetor float designed for use in various Pontiac, Buick, and other vehicles from model years 1958, 1959, 1960, and beyond. This carburetor float is a genuine part from Rochester, a well-known brand in the automotive industry, ensuring quality and compatibility with the specified vehicle models. Ideal for restoring or maintaining the fuel delivery system of classic cars, this float helps ensure proper function and performance of the carburetor.