, 3/8 in. These casement operator tee crank handles are constructed of zinc diecast and come in a white painted finish.These operator tee handles are used on casement, awning, jalousie and louver window operators5 universal plastic inserts to fit 5 different sized spindlesTee handle grip for easy operationDiecast construction with a white finishThis handle measures 2-3/8 in. x 2-3/8 in.