The CX Aluminum crossbolt is a fully assembled 7001-T6 alloy crossbolt with half moon nock and 4 inch vanes for added control. Spined for crossbows 150 to 175 lbs. and priced to fit the value minded hunter. Fully assembled with half moon nock and inserts. Tensile strength 88,000 PSI. Diameter: .348 inches, Weighs: 494 grains. 22 inches, 6 pack.