Gold Tip Velocity makes slow bows fast and fast bows faster. The Velocity is the affordable way to speed. Constructed of Gold Tip's Smart Carbon® Technology for unmatched durability and straightness retention. Included Components Accu-Lite Nock Accu-Lite Insert (300-400 spines) Specifications Straightness Tolerance: +/- .006" Weight Tolerance: +/- 2 gr 8.8 gpi