Best Seller | Invenitiah Universal Mailbox Flag | Wayfair WAB004FL8P5C About this itemBrick, stucco, stone, wood, metal or plastic mailbox? Universal Mailbox Flag attaches to them all! MADE IN THE USA! Stands up to both Hot & Cold climates. Resists fading due to sunlight. Requires 5/32" masonry rated bit, 3/16 metal rated... ... more Invenitiah Universal Mailbox Flag | Wayfair WAB004FL8P5C About this itemBrick, stucco, stone, wood, metal or plastic mailbox? Universal Mailbox Flag attaches to them all! MADE IN THE USA! Stands up to both Hot & Cold climates. Resists fading due to sunlight. Requires 5/32" masonry rated bit, 3/16 metal rated... Wayfair | | $93.99 $86.99 FREE shipping go to store |