"Meade Series 4000 #128 3x Short-Focus Barlow Lens (1.25"") #07278. This compact ""shorty"" type Barlow triples the magnification of your 1.25"" eyepiece while offering excellent image quality. Popular item due to it's excellent quality, value, and usefulness on nearly every model telescope sold. Triples the power of any 1.25"" eyepiece without adding a very long extension between the telescope and the eyepiece. Insert this into the telescope's eyepiece holder or diagonal first, then insert your eyepiece into the Barlow. Compatible with nearly any telescope which uses 1.25"" eyepieces regardless of brand and even those with limited focus rang"