Add some character to your mailbox one of with these rich designs. Mailbox covers in this section are suitable for spring, summer and many of them will work well any time of year. If you like to change your mailbox cover with the different seasons, you have come to the right place. Please also check out our fall and winter designs. Each mailbox cover is PVC coated, weather and fade resistant and has a magnetic backing. Changing the look of your mailbox is easy with these magnetic mailbox covers. Each cover includes a set of adhesive numbers. Approximate size: 18" x 24" and fits any standard T1 mailbox.