Designed and built to withstand the high-energy demands of crossbows. Each arrow has a 400 grain weight with 100 grain field points (not included), pre-installed lighted nocks, and is made of durable carbon material. The CenterPoint Carbon Arrows are designed for crossbows that utilize 20" arrows with a non-proprietary half moon nock. Product Features 400 grain weight: With 100 grain field points (field points not included) Light up your target: Track your flight path and retrieve your arrows using pre-installed lighted nocks Take your best shot: Achieve consistent accuracy with a straightness tolerance of just +/- .003" High-performance carbon shaft: Fire straight and true with half moon nocks and 2" Blazer Vanes Compatible with Deadpoint broadheads Compatible with the CP400 crossbow and other crossbows that utilizes 20" arrows with a non-proprietary half moon nock