The Baader Reducer is an eyepiece barrel reducing 1.25 "on 24.5mm with filter thread M28.5 that is designed for 1.25"eyepieces and clamping of eyepieces with 24.5mm diameter at 1.25 "eyepiece holder. It comes with 6.5mm optical path length.
Features: Baader Reducer 1.25"/24.5mm With Filter Holder
Eyepiece Barrel Reducing 1.25" on 24.5mm
With Filter Thread M28.5 for 1.25" Eyepiece
For Clamping of Eyepieces with 24.5mm Diameter at 1.25" Eyepiece Holder
6.5mm Optical Path Length
Specifications: Baader Reducer 1.25"/24.5mm With Filter Holder