This TERO AK4 flights can combine with AK7 stems/shafts are with well-designed built-in spring telescopic and rotating combo system,
perfect for soft tip and steel tip darts.Rotating (without wobbling)allows each dart to be more closer together,
avoids flights ripped out caused by hitting previous dart,telescopic prevent dart's 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.
Size: Can combine with TERO AK7 dart stem to set up 8 sizes length flights