Gibraltar Mailboxes Wyngate Large Capacity Galvanized Steel Black, Post-Mount Mailbox, WM16KB01 Large size capacity provides abundant space for multiple parcels, boxes and padded envelopes Constructed with strong galvanized steel. Dimensions - 10.8 H x 10.6 W x 22.2 D inches Black powder-coated finish is rust-resistant to withstand the elements Installs easily onto a variety of Gibraltar posts including the LP000B00 and the BP000B01 Concealed Locked Access