I *think* this is the Meade dew shield, perhaps you can help me. It is flexible, with black felt interior. It attaches to the scope with 3 hand-turned screws around the perimeter. It looks just like the picture I have attached (same color as the scope, "Meade" blue). The Meade dew shield for 12" scopes sells for $185, but I believe that is aluminum - this one is hard, but flexible, plastic. I used it many times and it works great. So, make me an offer for this one, I sold the scope it went with so I don't need it anymore.