There are multiple attachment points to hold the Back Seat Cover in place, including adjustable straps and two Sta-Put? devices. Stain-Block treatment makes this product fully waterproof. Best of all, this cover is completely machine washable, making maintenance hassle free. At 56"x47" and weighing only 2.5 pounds, the Back Seat Cover is an amazingly easy to use product, fitting in any vehicle and easily moved and set up by any individual due to its light weight. The Back Seat Cover is backed by a one year warranty.