The Schlage Single Cylinder Deadbolt with Addison Trim in Matte Black is perfect for use on exterior doors and adds an extra layer of security to your exterior handleset or knob/lever. The Addison Trim’s distinguished look incorporates subtle details without losing its classic simplicity. When finished in Matte Black, the deadbolt looks especially elegant. Plus, it’s been designed and tested with strength and durability in mind.