Plastic material is guaranteed not to rust
Quick and easy installation
Fits all USPS approved post-mount mailboxes
'SOLAR" REPLACEMENT FLAG KIT •7-1/2"L x 2-1/2"W x 1/8"H •Red •Plastic Replacement Flag Kit For Mailboxes •Complete With Hardware.
Gibraltar Rust-Proof Plastic Red Mailbox Replacement Flag Kit RFL10000 - B000CSN42Q