Posted a couple of pix of the hinged and solid cock rings in my gallery. I bought the hinged one from Granger supply (they have online and real street stores); but I could not find them on their online service. You might try Ruland. My hinged collar is made by Stafford. Good luck. Stay hard!

I bought a denim snap-on cock ring about 5 years ago in San Francisco and love it. It has 3 snaps so it can be adjusted. I throw it in the wash ocasionally. It is the best one I have ever had and the material doesn't chafe my skin.