Harrows Nx90 90% Tungsten Steel Tip Darts Distance Harrows NX90 Black - Steel Tip Darts - 90% Tungsten - 25g - Mack Darts Tapered Darts The 21st century Supergrip shafts feature precision fitted machined rings, which, unlike traditional springs, do not open when flights are fitted. Harrows NX90 Black Edition Steel Tip Darts - 25gm This results in an incredible vice-like grip., 3 x Darts The Harrows NX90 Steel Tip Darts are precision-engineered darts built with 90% tungsten, giving them a slim, durable profile that slices through the air with minimal resistance Printed on tough 100 micron material, NX90 flights are available in 4 striking colours NX90 Parallel The Latest Addition To The NX90 Range, Alongside The Bomb Shape The 3 x Prime - Sword Flights , 3 x Alamo Shafts