This 2x Multi Coated Barlow comes in a sleek, silver package. The two-element optics are fully multi-coated, and the edges of the lenses are blackened to cut down on internal reflections. The 1.25” barrel will fit in standard 1.25” focusers and diagonals, and the Barlow will accept 1.25” eyepieces.
The Barlow is threaded from the top which means it can accept T-rings and can act as a T-Adapter 1.25″.
A metal thumbscrew locks the eyepiece firmly in place.