The Truth Hardware 9-1/2 in. Coppertone Right-Hand Single-Arm Casement Operator features a hardened-steel arm, drive worm and gear protected by a corrosion-resistant finish. This operator provides a 90-degree window opening and disconnects from the sash with ease. The handing for this Prime-Line Operator is determined by the window's hinge location when viewing from the outside looking in. If viewing window from inside the home looking out, please see opposite handing.