Lordy, how to describe them? There are two, sorta "C" shaped halves, to each scope-ring. On top of each half is a bit of machining which, viewed from above, is "D" shaped. (When the sides are held together, the "D"s make a circular shape.) With me so far? Okay. The edges of the Ds are back cut, to match a cut-out in the under-side of a round cap which acts as a clamp, on top.
So, you put these halves on each side of the scope, and put the cap on top, hooking the three pieces together to make a scope ring. At this point, the three pieces are held together by your boyish charm.
So: Now, put the other three pieces together and you're ready to put the rig onto the mounts.
Oops! One of them just fell apart. Sorry about that. Go take a Valium, 'cause it's gonna happen again.
It's pretty easy if you have three or four hands, or have prehensile toes.
The steel is high quality, and seen from the side or from above, the rings are rounded and quite attractive. Streamlined and racy. Once it's all together and in place, it's a very strong system. It's just way too complex. I only bought one set.
My other 20 or so scope mountings through the years have been Weaver.
Hope this helps,
, Art