Product Details:

Mechanism Only - No Operator Cover or Handle
From Truth Manufacturing

This operator is designed for use on windows that are too narrow to accept the EntryGard Dual Arm Operator. 
This operator can be used on windows as narrow as 11 inches (279.4 millimeters) between stops (nine inches (228.6 millimeter) between stops if less than 90º of opening is acceptable).
Excellent low-torque operation of narrow casement windows through a full 90º of opening.
EntryGard Dyad Operator also adapts to an awning window application when mounted to the side jamb.

Plastic or Metal Covers and Handles for this operator mechanism are available. Please, choose a handle with 11/32" Spline (Crank or T-Type).