Elkadart Black Mamba 80% Tungsten Steel Tip Darts with Storage/Travel Case Designed with high quality, 80% tungsten and 20% 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 Quality flights are constructed to help increase speed and reduce drag, delivering a consistent flight path for pinpoint accuracy; Each steel tip dart weighs 24 grams Darts are fashionably stored and protected in the slim-profile, hard-shell case; Proudly designed, manufactured, assembled and packaged in England