Altra Arrows Pin Nocks for Altra 204 Arrows Shafts Set of 12 White. Made of durable impact resistant polycarbonate. Specifications for Altra Arrows Pin Nocks for Altra 204 Arrows Shafts: Manufacturer: Altra Arrows Fabric/Material: Polycarbonate Weight: 9.5 grain Features of Altra Arrows .204 Nock: Designed for a precise fit on all Altra 204 Arrows Made from durable impact-resistant polycarbonate Comes in 12 pk QTY Weight: 9.5 grains Available colors: Clear Smoke White Red Orange Pink Green & Blue Ensures reliable and consistent performance Ideal for achieving the pinnacle of precision and performance Package Contents: Altra Arrows Pin Nocks for Altra 204 Arrows Shafts Altra Arrows AA-NK-00027: Pin Nocks for Altra 204 Arrows Shafts Set of 12 White