If one does not use binoculars with less than 10x magnification, a tripod is necessary for astronomical observations, as a rule. The corresponding adapter of dried makes a stable impression, attaches easily to the central axis of the binoculars and holds the glass securely and firmly. He is for all binoculars with a standard 1/4 "- available connection, provided between the two tubes is sufficient space to accommodate the adapter This is probably the case with most glasses with Porro prisms but I have also a pair of binoculars.. experienced with roof prisms whose tubes so close together were due to the straight design that a tripod adapter barely fit in between. The attachment of the binoculars can then quickly turn into an annoying fiddling. A quick check before buying can therefore be worthwhile if necessary.
Whether the adapter for large binoculars with a weight of 2 kg and even more suitable, so far I could not test, it seems to me due to the leverage effect, but questionable. However, such binoculars are often equipped with an integrated stand adapter (center bar), so that for them anyway, no separate adapter is required.
Conclusion: Not necessarily cheaper tripod adapter, but it does what it should. Buy recommendation!