Viper V-Factor 90% Tungsten Steel Tip Darts with Storage/Travel Case Designed with high quality, 90% tungsten and 10% nickel barrels which offer exceptional balance and styling in a slim profile Each barrel has strategically placed knurled bands, deep grooves and rings that make excellent gripping points and encourages consistent hand placement Lightweight, aluminum shafts feature locking holes which allow for a tighter fitting that improves stability and greatly reduces the need to retighten during play Includes an additional set of convex nylon shafts, flights, flight protectors and a dart mechanic wrench; Each steel tip dart weighs 23 grams Darts and accessories are fashionably stored and protected in the Deluxe Dart Pal case, which features a soft cloth lining and a hard outer shell