Andersen&reg; "Covington" Style ( 2-panel) Gliding Door Hardware Set in Bright Brass Works with Perma-Shield Gliding, Narroline Gliding and Frenchwood Gliding Patio Doors Used with two panel gliding patio doors (1 operating panel and 1 stationary panel) Works on both left hand and right hand doors Patio door hardware is solid, forged brass Features a ten-year limited warranty on the finish to provide years of enjoyment.