The Easton X Nocks are precision molded to provide a secure fit on most standard-diameter carbon arrows and aluminum shafts. These indexable nocks feature Super UNI Bushings for added durability. With their white color, they offer excellent visibility for easy tracking. The Easton X Nocks are designed to withstand the rigors of frequent use. Fast shipping ensures you get your gear quickly. Whether you're a seasoned archer or just starting out, these nocks will provide reliable performance.Key Benefits and Features: Fits most standard-diameter carbon arrows: Fits most aluminum shafts with Super UNI Bushings: Precision molded for secure fit: Indexable for easy installation: White color for excellent visibility: Super UNI Bushings for added durability: