Cuesoul Tero AK4 Dart Flights - Big Wing RedTake your dart game to the next level with the innovative Tero AK4 Flight System by Cuesoul a patented design engineered for both soft tip and steel tip darts. When paired with AK7 shafts, this system features a unique built in spring telescopic and rotating mechanism that enhances durability and performance. The rotating flight design ensures smooth spin without wobbling, allowing darts to group closer together while preventing flights from being