Cosmo Darts - Discovery Label - Soft Tip - Nami Iwasaki. Made in collaboration with Nami Iwasaki, these silver 90% tungsten barrels feature a ringed grip along the majority of the curved barrel. In the centre is a smooth block with some milled cuts to give an artistic flair to the design. Pack contains: 90% tungsten barrels, Fit Shaft and Fit Flights