These coloured alloy dart shafts have a 1/4 inch dart barrel thread, shaft removal hole, contoured shaft and quad-fin dart flight holder.To correctly measure a dart shaft length measure the length of the actual dart shaft itself, the threaded section is not included in the measurement.Dart shaft lengths: Short (34mm), Standard (46mm).Each pack contains 3 x 2BA coloured alloy dart shafts.Colours: Black, Blue, Gold, Red, Purple.