This Tele Vue 31mm Nagler Type5 eyepiece is a top-of-the-line accessory for your telescope. With a 2 inch item diameter and a focal length of 31mm, it is compatible with the Vue series and perfect for capturing stunning celestial views. The Nagler design ensures excellent eye relief and a wide field of view, making it a must-have for any serious stargazer. Its brand Tele Vue is known for producing high quality optics, and this eyepiece is no exception.