This image features three entry doors—one red, one gray with a window panel, and one natural wood tone—each equipped with different locking mechanisms. These include a traditional deadbolt, a cylindrical lever, and a keycard lock. Such setups are often found in residential homes, apartments, and commercial buildings. Rekeying these locks allows owners and managers to update access control without removing existing hardware. It’s especially useful during move-ins, staffing changes, or after misplaced keys.