Trophy Taker's Top Pin hunting sights feature all metal construction and are built on Trophy Taker's proven windage and elevation system...complete with large 10-32 adjustment bolts. The top pin has over 50" of fiber optic strand wrapped to it. The fiber is spooled over a band of military grade glow in the dark tape which captures natural or artificial light and transmits it to the top pin in marginal shooting light. Each sight comes with a glow in the dark alignment ring as well. Every Top Pin sight is equipped with the largest level bubble in the industry that sits in a machined recess visible only to the archery. Oval 10-pin models come with ten fiber optic pins. The top pin is fixed, while all other pins are adjustable. The sight is also equipped with second axis leveling capability.