6 metal locks; metal locking mechanisms; metal security locks for use in detention facilities; metal surface-mounted lock pockets, namely, metal locks installed on the surface of correctional facility doors and frames; metal keys for locks; metal enclosures for detention locks, namely, metal enclosed locks used in a mortised opening, otherwise known as a lock pocket, for detention locks; metal lock pockets, namely, metal locks installed in mortised openings, or pockets, within the cell door and frame; surface mounted hollow metal lock pockets, namely, metal locks installed on the surface of correctional facility doors and frames