Do you want to add some real horsepower to your eyepiece collection? Then consider the #128 Meade Barlow Lens... We're talking triple the magnification! When placed into the focuser, the eyepiece is added to the Meade 3X barlow and held in place by a set screw. This automatically triples the amount of magnification power of your eyepiece. The Meade #128 Barlow uses a two-element optical design, giving high resolution and color-corrected images! Remember our magnification equation... Because this much power could make some eyepieces deliver more usable magnification than the telescope's limitations will allow!