Gibraltar TB1B0000 Tuff Body Galvanized Steel Post-Mount Mailbox,10 x 7.5 x 20.75-Inches,Black Large size provides generous capacity for multiple parcels Galvanized steel construction provides strength and stability; Product Weight (lb.): 16.8lb Black powder-coated finish keeps like new and stands against the elements Assembles with ease onto a variety of Gibraltar posts such as the ES200B00, BP000B01 and SDPK0000 Tuff Body Post Mailbox, Black Steel, 9.25 x 7.25 x 19.75-In.