Paperback book - Cover and Protecter - The Hardbacker Jacket (Teal) Cover Your Paperback book to protect your book from everyday wear and tear. You can also cover you paperback when it is no one else's business what you are reading. Handmade from durable material (not vinyl) that virtually turns your paperback into a hardback. Totally reusable and adjustable for thickness. Fits mass market paperbacks - 7.2" x 4.3". Made in the USA for 20 years plus Ideal as a holiday gift for a loved one (or love yourself with this durable and attractive cover.)