Click or scroll to zoom Tap or pinch to zoom Adapter Kit for Plastic Mailboxes by Studio M $ 5.99 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Just peel off the self-adhesive backing to attach the specially developed "magnetic receiver strips" to each side of a plastic or aluminum mailbox. MailWraps® magnetic mailbox covers then attach just as if your mailbox was made of steel!