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 – Does this work with my crossbow? Get your answer and see other accessory options here: COMPATIBILITY CHART PRODUCT CODE: 22QV16IL-3