Carbon express nock launchpad precision orange.244 id 12pk FEATURES-Clear Orange-12 pack-Fits all Carbon Express shafts with a 0.234" & 0.244" inside diameter-Precise contact points -Controlled arrow release for more consistent accuracy-Perfectly aligned nock barrel - Truer flight for greater accuracy-Concentric design - Nock centers itself in the arrow shaft for more consistent performance Other Features: Fits arrow to bow string tightly,yet with enough space to allow for a natural draw