Check the listing for details. Universal Outgoing Mailbox Flag - Postal Carrier Raised Signal Flags Replacement. Condition: New. Listed at 8.95 USD. Anley Universal Outgoing Mail Mailbox Flag for Brick, Wood, Metal & Stucco - Rust Resistant Plastic Alert Postal Carrier Raised Signal Flags Replacement Kit - Mounting Fasteners Included (Flag Only) UNIVERSAL FIT This alter flag kit is made of sturdy plastic, which is compatible with all rural architectural mailboxes. It also works greatly over a solid masonry, brick, wood, metal, or stone surface. SPECIFICATIONS This package comes complete with a flag, mounting bracket and 2 sets of fully threaded fasteners. Flag is measured approximately 8-1/4" tall by 1-1/4" wide. EASY INSTALLATION Simply screw the flag base to your mailbox, then it is ready to indicate to your mail carrier! A 3/16" bit (for metal surface) or 5/32" bit (for masonry/wood surface) will be needed. WEATHER RESISTANT Durable and sturdy polyethylene plastic makes it stand up to both cold and hot climates. Resist fading from prolonged sunlight exposure. WARRANTY We stand behind our products! All flags and items sold by ANLEY come with a FREE 3-MONTH warranty.