This stainless steel lever is a replica of an original window lever found on early 50s model Spartans, Boles Aero, and others. This is a left hand operator, but also comes in a right hand. Lever has a 13/64" hole on the end for attaching it to the window. The difference is in the direction the handle of the lever is bent; it should always be facing in towards the window. If you never want to fuss with rusty window levers again, these are the ones for you. These are custom made and may have a delay of 2-3 weeks in being delivered when ordered if not already made.