The Sniper 90% from WINMAU is designed using the latest 3D modeling technology, with striking and unique performance barrel designs, high level grip and control for perfect stability in flight. This dart set comes in 3 weights; 21-22-23 grams. 21G = Barrel Length: 50.80mm, Barrel Width 7.00mm. 22G = Barrel Length: 50.80mm, Barrel Width 7.15mm. 23G = Barrel Length: 50.80mm, Barrel Width 7.30mm.