The listings show outer diameters of 5 7/8 inches (5 7/8" O.D.) and 2 7/8 inches (2 7/8" O.D.).
One listing advises that if the new belt feels a bit tight, you can stretch it slightly so it fits better before installing.
Several listings list a "1 Year Limited Warranty" in the product details.
Listings that use the word "Genuine" or phrases like "Genuine Replacement Part" indicate OEM labeling, while others use wording such as "Replacement" or "Generic Replacement."