The Black Eagle R Nock Clear 71 is a premium polycarbonate nock designed to enhance your archery experience. This nock is impact-resistant and ensures consistent accuracy, making it a reliable choice for serious archers. With a center serving size of .109" - .110", it is perfectly matched for Spartan, Rampage, and Renegade shafts. Weighing just 7 grains, the R Nock Clear 71 is easy to install and provides a secure fit, ensuring your arrows stay in place during shooting. The clear color option allows for customization and visibility, making it a versatile addition to your archery setup Black Eagle R Nock Clear 71