16.5-inch Arrow length; 250-grain arrow weight; Durable high-quality carbon fiber material; .003 straightness tolerance; 2″ Blazer vane with a 3-degree offset; 2 Nock options: Carbon Rhino or Ultra-Bright Illuminated Beacon; Designed for use with Excalibur’s TwinStrike and Micro Series crossbows; Compatible with CeaseFire Technology crossbows/all models that utilize flat nocks; High-quality and solid structure contribute to straight flight path, optimal accuracy and target penetration; Available in 3/6/12/18/24 Pack options