Most listings are sold as two-belt packs (labels like “2pcs” or “Each package contains 2 Replacement Belts”); at least one listing is a single-belt package labeled “Package of (1) belt.”
Listings note that a new belt may be tight and recommend stretching it slightly to help it fit properly on the vacuum.
Yes. Some listings use “Stretch” in the title, while at least one listing refers to “Style 65 non-stretch belts,” so both stretch and non-stretch descriptors appear.
Some product bullets list package dimensions (for example, 4" x 4" x 6" and 6" x 1" x 10"). Product details also include “Warranty: 1 Year Limited Warranty.”