This 4-pack of T-handle casement window cranks from Ideal Security comes in a white painted finish. Also known as butterfly cranks, they have a discreet profile and neatly hug the window sill making them ideal for casement windows with blinds. This casement operator T-handle is designed to fit a 11/32" spline shaft. To install, simply snap into place and gently tighten the set screw.