Energy Saving Garage Door Hinge, Residential Set, 4 Panel Door Best System Ever Made To Seal Overhead Garage Doors to Reduce Dirt, Dust, Bugs, Rain & Moisture. Spring-Loaded To Automatically Self-Adjust For A Tight Sealing Door Closing Up To  in. Side Gap With Quick & Simple Install Instructions. Fits Residential  Commercial Doors To Stop Overhead Rattle & Make Smoother Door Operation. Saves Energy For Hobby Enthusiasts To Commercial Conditioned Buildings For Great Return On Investments & Reduce Costly Service Calls. Heavy Duty 12 Gauge Powder Coated Steel. **IF YOUR GARAGE DOOR IS OVER 12' WIDE USE MFG # C4416-40 COMMERCIAL HINGES.** 100% Made & Assembled In USA With Life Time Warranty.