DoorSaver has done it again with DoorSaver 3. Its ultra-low-profile design creates bumperless protection for doors and trim. The DoorSaver 3 is a set of interlocking cams that use your current hinge pin (select the DoorSaver II if you prefer the hinge pin to be built into the interlocking cams). DoorSaver 3 is simple to install, looks great and stays in place without “working up.” Fits all home doors with 3 1/2 to 4 inch hinges. Adjustable to allow you to customize the opening radius of your door. Bumperless design eliminates damage to doors and trim with an Ultra-low profile. Installs in seconds – no tools required Hinge mounted to fit all doors Utilizes your existing hinge pin. Won't work up like conventional hinge-mounted products Made from strong carbon steel & has a warranty guarantee to never damage your door or door casing. Finish is Antique Nickel to match antique nickel hinges. HH Specialty is a national distributor of Door Saver products and provides full technical and design assistance.