These darts are made from 80% Tungsten Nickel Alloy, with precision engineered barrels. Part of the Matched weight series, this is a set of 3 barrels within 0. 1 g. The darts also feature Gripper Shafts & Hi. Lite flights. These, along a free set of spare XL anodised aluminium shafts & free set of flight protectors come in a deluxe silver compact case.