V-Flight Pro 18" Arrows are optimized for Excalibur's Hybrid X crossbow; Specifically designed and spined to match the high speeds generated by the Hybrid X; Constructed from premium carbon fiber for superior strength and consistency; Feature an ultra-tight straightness tolerance of .001" for pinpoint accuracy; Weight tolerance of +/- 1 grain ensures balanced performance shot after shot; Equipped with Rhino V-Nocks to enhance durability and minimize serving wear; Designed to withstand the demands of high-performance compound crossbows; Provide reliable flight characteristics and maximum energy transfer; Engineered for hunters and shooters seeking top-tier arrow precision; Sold in a convenient 6-pack for consistent field or range use