This is a Vital Bow Gear Pro Slide sight. The fiber optic cable is .019 in diameter and extremely bright. I lost the bubble level from the bottom of the sight but you could easily purchase one at a sporting goods store and glue it on if you would like. The yardage tape on the sight is in perfect condition and has no markings on it. I can email pictures if you would like. I am asking $40 including shipping or make me an offer.