This slim shape solid black flight and medium solid black stem incorporates the innovative Condor Zero Stress concept. This medium solid black slim flight is measured from the ridge of the screw to the joint/link between the solid black slim flight and the medium shaft. Shaft length: 27.5mmThis slim shape solid black flight and long solid black stem incorporates the innovative Condor Zero Stress concept. This long solid black slim flight is measured from the ridge of the screw to the joint/link between the solid black slim flight and the long shaft. Shaft length: 33.5mm