This MailWrap magnetic mailbox cover was designed to fit on standard (T1) mailboxes measuring approximately 6.5 inches wide by 19 inches long. Optional MailWraps Adapter Kit available for use on plastic or aluminum mailboxes. The Original - Still the Best - Invented by Studio M’s founders, Curt and Sue Todd, in 1989, MailWraps are the original magnetic mailbox covers. Made right here in the USA, MailWraps are printed on high-quality vinyl. They are incredibly durable and fade resistant, so the beautifully designed artwork will stay vivid season after season. One Year “Weatherproof” Guarantee. We guarantee Authentic MailWrap mailbox covers against weathering for one year of everyday use. If for any reason you are not satisfied with the performance of this mailbox cover, contact us within one year of purchase for a free replacement. MailWraps magnetic mailbox covers are created by the team of passionate people at Studio M, a family-owned provider of nature-inspired home and garden decor located in St. Louis, Missouri. Owners Curt and Sue Todd started the company when they invented MailWraps 30 years ago.