Includes Glow in the Dark fiber! Hollow Pino technology greatly reduces target panic since the archer can look at the target thought the hole. Horizontal and cross hair sights have a special place in the archers heart. A simple, single rail sight and the HOLLOW PIN technology was designed to accommodate this very old desire. The HOLLOW-PINO sight is a cross hair that helps increase visibility of the target. We have resolved the old problem of not seeing where you aim and allow you see where you hit.