reegox crossbow bolts 20 inch bio crossbow arrows with 4-inch vanes(pack of 12) reegox reegox bio crossbow bolts are designed for beginners and whoever new to hunting and archery.<br/> <b>arrow specification</b><br/> ·shaft length:20” <br/> ·i.d:7.62mm(0.300”) <br/> ·o.d:8.8mm(0.346”)<br/> ·total weight: 425grains <br/> ·come with target points<br/> ·fixed insert<br/> ·moon nock<br/> ·pack of 1 dozen </b><br/> <b>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 <b>an air dryer </b>for a while.<br/> 4.the use of an overdraw significantly increases the risk of injury to the shooter.<br/> 5.archers or people who need excellent accuracy and consistency, please try another product in our store (ares crossbow bolts, usa q2i vanes, 6 pack), which are made of 100% carbon, weighed and grouped to ensure the perfect match.<br/><b>our brand store has been launched online, and a wide range of products meet your different needs.please click the “reegox” under the product title. let’s enjoy shopping, enjoy archery.</b><br/>