The Surge crossbolt by Carbon Express offers superior performance at an exceptional value. The 360 degree spine consistency allows for greater accuracy while advanced carbon composite material is extremely durable for repeat performances in the field. Will never take a permanent bend. Superior impact strength and durability. Straightness: ¦ 0.004 inch. Diameter: .348 inches. Weight: 479 grains. Comes with both Flat and Moon Nocks. 22 inches, 6 Pack.