The shield cut 2.25" X Vane™ is recommended for 3D and indoor archery. The 2.25" (57.2mm) X Vane measures 0.36" (9.2mm) in height and weighs an average of 5.8 grains (375.8 mg). Like all Bohning vanes, the base of the X Vane is pre-primed for optimal adhesion.