[aperturefever (Sean)]

This is the standard Bintel 8x50mm right-angle finderscope with crosshair eyepiece, mount, and cast metal dovetail shoe with screws. All you need is a pair of holes in your tube and you're good to go.
I've had this on my 16" dobsonian for the past three years. It works well and I am only getting rid of it because I have got an 80mm Stellarvue instead to double as a grab-and-go scope. The optics are in perfect order. There are a couple of scratches on the tube as shown in the photos, but they disappear when it is sitting in the mounting, which caused the scratches in the first place. There is a O-ring in the mount at the front that has split, but it has been like that since a few days after I had it and does not affect performance. You could easily replace it in any case - it's just a glorified rubber band, really. Comes with original packaging.
Brand new these are $89 plus postage; I'm letting this go for a measley $40 plus postage.