These crossbow bolts are designed to withstand the high-energy demands of modern crossbows, and feature a durable carbon fiber construction. They come with 2" Blazer Vanes, and feature pre-installed lighted nocks. Compatible with the CP400 crossbow and other crossbows that utilize non-proprietary half-moon nocks. CenterPoint Archery Centerpoint CP400 Select 20" 400gr Carbon Arrow w/Orange Lighted Nock 3pk AXCP4SLN3PK