Left-hand Hinge for 400 Series Frenchwood and A-Series Hinged Patio Doors in BlackContents: Includes single hinge (leaf and hinge receiver), screws, and instruction guide.Specifications: Overall Width: 3-1/16 Inches Door Panel Length: 3-15/16 Inches Door Jamb Length: 4-1/4 Inches Handed: Yes Color(s): Black NOTE:If replacing one hinge, replace all hinges on the panel as well.Andersen has 3 generations of hinges:1. 1989-1991: These hinges had one hole in the center of the tab.2. 1992 to November 2005: This generation had two holes.3. November 2005 to present: These hinges are totally different and require modification if being used to replace older hinges. See the first article below for more information.All About Doors Guide: How to Replace Old-Style Andersen Hinges with New-Style Manufacturer's Guide 0005105: Adjusting Andersen Hinges Made Pre-November 2005Manufacturer's Guide 0000127: Adjusting Andersen Hinges Made Post-November 2005General Information: How to Identify Andersen Hinges