Meade Series 4000 #128 3x Short-Focus Barlow Lens (1.25") #07278 is a compact "shorty" type Barlow that triples the magnification of your 1.25" eyepiece, while offering excellent image quality due to its multi-coated optics. This item is popular due to its excellent quality, value, and usefulness on nearly every model telescope sold.
Insert this into the telescope's eyepiece holder or diagonal first, then insert your eyepiece into the Barlow. It will triple the magnification of the inserted 1.25" eyepiece. It is compatible with nearly any telescope which uses 1.25" eyepieces regardless of brand, and even those with limited focus range.
Product carries full one year Meade factory limited warranty (within US/Canada only).
Note that high magnifications must be used with proper knowledge of the quality of your seeing conditions, the quality of the optics you use, and proper expectations of what magnification powers are reasonable. Boosting already high powers to even higher powers with this or any other barlow is bound to lead to disappointment.