Specifications: Shaft length:18"/20’’/22’’ I.D:7.62mm(0.300’’) O.D:8.8mm(0.346’’) Total Weight: About 440grains Come with target points Fixed insert Moon nock Pack of 1 dozen User Notice: Warning?check for damage before each shooting. Do not shot against concrete wall or any hard substance. This may damage the arrows. The vanes may be bent because of long way transportation,but it can recover by using an air dryer or soaked in hot water for a while. The use of an overdraw significantly increases the risk of injury to the shooter.