Quill Carbon Arrows are specifically designed for use with Excalibur’s TwinStrike and Micro Series crossbows. 3-Pack 16.5″ Arrow Length 250 grain arrow weight .003 straightness tolerance 2″ Blazer vane with a 3 degree offset Equipped with Beacon Nocks Compatible with CeaseFire Technology crossbows or any that utilize flat-back nocks PRODUCT CODE: 22QV16IL-3