The Heavy Weights are here! Bottelsen added heavier weights and their Black Steal finish to the original Hammer Head 90% tungsten dart line. The Hammer Head No Bounce Dart line was designed and patented by Walt Bottelsen. The Hammer Head mechanism virtually eliminates bounce outs. Darts come complete with 2ba shafts, flights, Hammer Head moveable steel tips <i>(Points are moveable point-Hammerhead mechanism)</i>, Hammer Head dart wrench, and dart case (Case may vary with stock availability).