This standard shape clear purple flight and short clear purple stem incorporates the innovative Condor Zero Stress concept. This short clear purple flight is measured from the ridge of the screw to the joint/link between the clear purple flight and the short shaft. Shaft length: 21.5mmThis standard shape clear purple flight and medium clear purple stem incorporates the innovative Condor Zero Stress concept. This medium clear purple flight is measured from the ridge of the screw to the joint/link between the clear purple flight and the medium shaft. Shaft length: 27.5mmThis standard shape clear purple flight and long clear purple stem incorporates the innovative Condor Zero Stress concept. This long clear purple flight is measured from the ridge of the screw to the joint/link between the clear purple flight and the long shaft. Shaft length: 33.5mmCondor Dart Flights – Zero Stress – Standard – Clear Purple – ShortCondor Dart Flights – Zero Stress – Standard – Clear Purple – MediumCondor Dart Flights – Zero Stress – Standard – Clear Purple – Long