I bought the adapter for the Bushnell Trophy binoculars, which I also purchased some time ago at militaria.pl. The adapter has a slightly different shape than shown in the picture, but that's not the main issue. The screw mounting the binoculars is too long, so its thicker part does not rest on the arm, making the whole thing loose. I solved this by placing a short piece of tubing between the screw and the arm, and now the mounting is OK. I think this was a production defect, probably a one-off, and it does not depend on the type of binoculars. Other than that, I rate the adapter as very useful when you need to stabilize the viewed image.