2 Sets Mailbox Alert Flag for Delivered Mail Mailbox Delivery Notification Alert Signal Flag Replacement 16.4 Inch Aluminum Alarm Heavy Duty Accessories for Steel Metal Post-Mount

Follow the steps: 1: Includes mailbox flag and bolts (mailbox not included); 2: Simply drill holes in the side of the mailbox and bolt it to the mailbox; 3: When you see the mailbox flag being raised, then your mail has arrived Note: suitable for single-wall mailbox design, such as standard, large and giant iron box; not applicable to double-wall mailbox (integrated plastic mailbox) Size: the overall size of the mailbox alert for delivered mail is about 16.4 x 2 x 1.1 inches, which is long enough to secure your mailbox Trustworthy Quality: mailbox flag is made of quality aluminum material, strong and stable, and mail alert flag is yellow powder coated for high visibility; Suitable for any weather and works with most mailboxes Mailbox Flag Replacement: you will receive 2 sets of mailbox alert, which are enough for your daily use and replacement, suitable for most mailboxes, and you can also share with your friends or family