Used Orion GiantView 100-degree 9mm eyepieceCondition: Used, in very good condition, with clear optics and some slight markings on the bottom of the barrel. Includes both end caps. Description: Dual 1. 25" and 2" 9mm eyepiece with huge 100 deg apparent field of view (AFOV) Fully multi coated lenses with blackened edges for maximum transmission and contrast 16mm eye relief Threaded to accept standard 2" astronomy filters Orion offers its GiantView Ultra Wide telescope eyepieces in 9mm and 16mm