Set of 24 2ba Bar Dart Black Replacement Flights Set of 24 bar dart flights includes 25 black 2ba flights. The 2ba dart flights measure 2-3/4" in total length; the 2ba thread measures 3/16". Use these flights to replace broken dart flights on 2ba soft tip bar darts. A handy drawstring bag is included for easy storage. Fast shipping via the US Postal Service.