This handle is a gray Internal style latching patio door handle found on Viking as well as a variety of other sliding patio door manufacturers. Being one of the most common internal style latch it can be used on either right or left-handed doors. The handle body is diecast steel with a wood handle attached. The wood finish may vary slightly. Included is a matching outside handle and keeper. The mounting holes are 3-15/16 inch on center. When the latch is installed into the door frame through an inside access hole, the connected lever is held in place by a flat spring as it operates the latch up and down to engage the keeper.