they fit snug against the outside of the guide scope, they are exactly what i wanted and expected.
I really like the way these fit in a low profile on the handle of my Zenithstar 81 scope. It keeps the guide scope closer to the telescope tube which aids in balancing and just looks cleaner plus the color matches my telescope. Together with the William Optics red dot finder, it makes the entire assembly very compact. Was so glad OPT had these in stock. Shipping was fast as usual as well. Great job OPT!
Simple in use, attractive, and very high quality.