Quartet - QRT2121 Enclosed outdoor bulletin board offers a self-healing cork surface and high-density backing for maximum pin-holding power, ensuring documents stay securely posted. One locking, water-resistant, shatterproof acrylic glass door and aluminum-vented casing allow posting, protecting and easily updating important messages. Satin-finish anodized aluminum frame offers full-length hinges and weather-resistant durability. Bulletin board includes one key.