Mortise Dummy Cylinder in Aluminum finish, Durable commercial & residential, door hardware, door handles, locks, cylinder guard Our Mortise Dummy Cylinder is one of the most Durable door hardware pieces you can buy. It is made to last and manufactured at our high tech ISO 9000 certified facility Beautiful Aluminum Finish & Construction on the Mortise Cylinder door lock that will help protect your Family & home Improve the look and function of your home or office with our commercial grade quality door and window hardware We are confident we have the best value door hardware, sliding door hardware, external and internal door hardware on the market Supplied with trim ring 1/4 thick