2 Sets Halex Classic 17 and 18 Gram Steel Tip Darts 2 sets of Halex 17 Gram Darts or Halex 18 Gram Darts Neutrally balanced with a medium knurled (rough) body. Fitted with nylon shafts which are the choice of most professional players. The shafts 'release' the flight of an incoming dart when it hits an obstacle already on the board. Uses 2BA (3/16th inch) shafts.