glass

Hello. I have a Celestron C9.25 Evolution and wonder if anyone has the 2 small screw/rivet like objects which are attached to the black band of the drum and to which the  lens cover twists onto and held in place. I have one missing and the other broken.............................Thank you

Very helpful information/advice over quite a few days from Martin at First Light Optics on my intention of buying a telescope from them. Eventually I bought it from another supplier but he appeared genuinely pleased I'd got what I wanted.