Sizes range from small square seats (about 15" x 15" x 4" and 20" x 20" x 2") up to larger seat sizes like 24" x 24" x 4" and wide bench/3-seater cushions (about 38.5" x 59" x 2").
Cushions advertise protective finishes such as waterproof, water-resistant, fade-resistant, and stain-resistant. Some listings also note that cushions should not be left out in heavy rain despite these treatments.
Some cushions use sewn seams with non-removable covers, while others feature zippered, removable covers. Zippered covers in the listings are described as removable and, in some cases, waterproof.
Care instructions vary: many items recommend spot or wipe clean. Zippered covers may be hand-washable, and at least one bench cushion is described as machine washable (machine wash cold, do not bleach, do not iron, tumble dry no heat).
Listings include single bench cushions and multi-piece sets: 1-piece bench cushions, 2-piece and 4-piece sets, and larger 6-pack and 8-pack seat-and-back combinations.
Many cushions are vacuum-compression packaged for shipping. After unpacking, descriptions advise waiting about two hours or more for the cushions to recover; some listings suggest using a hair dryer to help speed recovery.