This sliding patio door handle set is constructed of black painted diecast materials and has a wooden handle finished in a light stain. The handle set is non-handed allowing it to be used on both left and right-handed patio sliding doors using mounting holes are 3-15/16 inch on center. This handle set is used to replace damaged or missing mortise/hook style handle sets on sliding glass doors. Installation instructions and all fasteners necessary for the installation of this handle set are included in packaging. Product selection tip: besides matching the style and type of locking mechanism, the other main specification to match is the measurement of the mounting hole centers, from center to center. Note: due to numerous compatible options, the internal mortise lock body is not included with this item and must be purchased separately.