The Black Eagle Vintage Nock Fluorescent Yellow 33449 is a high-quality polycarbonate nock designed for optimal performance with Vintage shafts. Weighing 9 grains, this nock ensures precise and consistent arrow flight. The fluorescent yellow color enhances visibility, making it easy to track your arrows during shooting. Compatible with Standard-Nock Bushings for PS23, PS26, and PS27 shafts, the Vintage Nock is a perfect addition to any traditional archer's setup