As advertised it fit my telescope perfectly. I really wanted this to work as this was my late son's telescope and he had so much fun with it when he was alive. Now I can enjoy it and think of him as I do so.
I gave this as a gift to replace a missing diagonal. It fit perfectly and enabled him to use the telescope. He seems to like the quality of the mirror.
I'm concerned about this prism (made in China and the quality control behind it. The one I received with my ETX LS6 had large gap on the screw down cover and a rubber shim out of place.