HIGHLY-EFFECTIVE - Specifically designed for use with Excalibur's MICRO Series crossbows. Quill Carbon Arrows are 16.5 inches long and feature 2-inch offset vanes for flawless flight when matched with the appropriate broadhead SUPERIOR ACCURACY - These effective Excalibur Quill 16.5 crossbow arrows bring you speed, kinetic energy and accuracy; Extensive testing has shown Quill Arrows to be the perfect choice for hunting with all Excalibur Twinstrike and Micro Series crossbows HIGH-QUALITY MATERIAL - Precision carbon hunting arrows are made for extended durability and long-lasting target practice; High-quality and solid structure contribute to strait flight path, optimal accuracy and target penetration EXTREMELY FAST - Developed in cooperation with top arrow manufacturer Black Eagle, Quill carbon crossbow arrows feature a reinforced spine for blistering speeds and a flatback insert for more reliable contact with the crossbow string SPECS - 16.5 long arrows feature 2 vanes with 3 degree offset and provide optimum performance when paired with 150 grain broadheads. Outside diameter: .347 . Inside diameter: .3015 . Weight: 9.9 grains per inch. +/-.003 straightness UPC 626192221667 Size 16.5 Color Black Brand Name Excalibur Model Name 22QV16-6 Unit Count 1.00 Ounce Item Weight 3.2 ounces Manufacturer Kinsey's Archery Model Number 22QV16-6 Included Components item Manufacturer Part Number 22QV16-6 Global Trade Identification Number 00626192221667