Prime-Line Products 171398 Jalousie Operator Reversible with Links, Aluminum Finish Jalousie window operator Reversible center crank with 3 links Designed to replace many jalousie operators 3 Link assortment at 3-5/16in. 3-5/8in. 4-5/16in. long each with 5/32in. O.D. link pin finish Aluminum finish Non-handed can be used on either left or right side Hardened Steel Drive Gears