Viper Sidewinder Darts 80% Tungsten Steel Tip Darts 21 GramsCoil up and prepare to strike with the Viper Sidewinder Steel Tip Darts designed for use with sisal dart boards. These darts are packed with features starting with the barrel, fashioned from 80% Tungsten and 20% Nickel. Tungsten is a very dense metal, able to create slimmer darts with the same weight as lighter metals; this allows for tighter shot groupings without sacrificing control, increasing your scores. Tungsten is a sign of quality and