Easton X7 Eclipse Shafts. Simply the best all-aluminium shaft on the planet. Famous for its extreme straightness, super strength and consistent spine. Features a polished black finish and factory fitted with unibush up to 1914 size and super unibush from 2014 size up. The X7 is manufactured from Easton’s tough 7178-T9 alloy with a demanding straightness tolerance of .001″. Shafts can be cut to your required length.