Got a 2" focuser and some 1.25" eyepieces that just won't come to focus?
Here's a fix: Astrosystems 2" to 1.25" ultra low eyepiece adapter. Now your 1.25" eyepieces can reach an additional 0.56" inside the racked in height of your focuser without any modifications to the tube, cell, or focuser. Threaded for 48mm filters. I would guess it would work with all types of scopes that have need of additional in-travel.
These are $20 new from Astrosystems. This one in very good to excellent condition. How about $12 + $4 shipping in the continental US? Specifications are shown in the photo below, or you can visit Astrosystems dot biz for additional information.