The original Hammer Head® No Bounce Dart™ line was designed and patented by Walt Bottelsen. The Hammer Head® mechanism virtually eliminates bounce outs. The original 90% tugnsten dart line is available with an Edge Grip™, smooth, fine or coarse knurling and come in a deluxe metal Croco’ Case. Be prepared to abuse the competition with Hammer Head® darts. Available in 24 and 26 gram weights. Darts are packaged in a deluxe metal, Croco’Case.