Check the listing for details. CUESOUL TERO AK4 Dart Flights Slim Shape-Dart Flight Solid Color. Condition: New. Listed at 9.39 USD. CUESOUL TERO AK4 Dart Flights Slim Shape-Solid Color This innovative TERO AK4 flights are new patent system from CUESOUL,well-designed built-in spring telescopic and rotation combo system(combine with AK7 flights),perfect for soft tip and steel tip darts.Rotation (without wobbling)allows each dart to be more closer together,avoids flights ripped out caused by hitting previous dart,telescopic prevent darts deflection when hit the previous dart,both assure the flights more durable use .This TERO system help your darts fly more stable and true,it will keep you from bend down and pick up flights in the heat of a dart game. Features: This is dart flights only.Dart Flights Slim Shape-Dart Flight Solid Color This AK4 dart flights should be combined with AK7 dart stem/dart shaft Weight:different weight with TERO AK7 A/B/C/D/E/F/G/H dart shaft,Pls refere to the pictures. Size:With TERO AK7 A/B/C/D/E/F/G/H shaft,dart shaft length in 25mm/32mm/34mm/37mm/40mm/43.5mm/47mm/53mm,help you to find a best length and best grip to improve your dart accuracy. This TERO system help your darts fly more stable and true,it will keep you from bend down and pick up flights in the heat of a dart game.it is new patent system from CUESOUL,(combine with AK7 shafts),perfect for soft tip and steel tip darts.This TERO system help your darts fly more stable and true,it will keep you from bend down and pick up flights in the heat of a dart game. Preview when combin with AK7 Dart Shaft