Material: Cast Metal. Color: Silver. Arm Width: 4.5625 in. Fits window operators manufactured by Harcar Aluminum Products Co. Silver color finish. 4-9/16" top to offset bottom hole. 1-1/2" between bottom holes. 2-1/2" link. Smooth operating gears. Uses bolt and bushing no. 192. Orientation: Right. Brand Compatibility: Harcar Mfg. Arm Length: 2-1/2 in. Finish: Silver. Color Finish: Silver.