<b>CQ Archery 16/18/20inch Crossbow Bolts Hunting Arrows with Replaced Tips</b> <br/><br/> <b> Product Description</b> <br/> <b></b><b>Length</b>:16/18/20inch crossbow bolt <br/> <b>Weight</b>: 16inch - 368grain<br/> 18inch - 380grain<br/>20inch - 425grain <br/><b>Inner Diameter</b>: 7.6mm<br/> <b>Outer Diameter</b>: 8.8mm<br/><b>Vanes</b>: 16/18inch: 3" vanes <br/>20inch: 4inch tpu vanes<br/><b>Arrow Tips</b>: 125grain <br/><b>Nock</b>: White half moon nock <br/><b>Packaging</b>:12pcs/paper box<br/><b><br/>User Notice</b><br/> 1.Warning：Check for damage before each shooting. <br/> 2.Do not shot against concrete wall or any hard substance. This may damage the arrows. <br/> 3.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. <br/> 4.The use of an overdraw significantly increases the risk of injury to the shooter. <br/> 5.Keep novice archer constantly supervised. <br/