Barrels created from 90-percent tungsten feature a slim profile, allowing for tighter grouping of shots which can increase scoring Knurled dart barrel with grooves and rings provides you with an excellent and consistent grip throw after throw Aluminum spinster shafts feature locking holes, the most secure way to fasten shafts to barrels, and rotate freely reducing bounce-outs Keep darts and accessories protected with a tough TacTech case, featuring a hard outer shell and foam-lined slots Includes 3 fully assembled darts, 3 extra flights, 12 extra 2BA Tufflex II Tips, a dart mechanic repair tool, and a TacTech case Material: Tungsten, nickel Color: Multicolor Dimensions (L x W x H): 5.60 x 1.00 x 1.00 inches Weight: 0.55 pounds Manufacturer warranty: 60-day warranty