ITEM NAME:3 x 1.25" Plossl PL Eyepiece Fully HD Coated Lens for Astronomical Telescope img *{margin:0;padding:0;.The Structure of the Optical System: Plossl Eyepiece. 1 Piece Plossl 4mm Eyepiece. 1 Piece Plossl 6mm Eyepiece. 1 Piece Plossl 9mm Eyepiece. This is a very nice high power eyepiece. Soft rubber eye guard that's custom fitted with a bayonet mount.
