Svbony SV137 1.25 inch 2x barlow lens with M42/T-Adapter connection provides a sharp view, ideal for high power observation.

1. 2-Element optics are fully multi-coated

2. The Edges of the lenses are blackened to cut down on internal reflections

3. The 1.25" barrel will fit in standard 1.25" focusers and diagonals

4. Internal brass ring that the set screw hits to hold your 1.25" eyepiece inside for eliminates marks on your eyepiece barrel