This is what Master is getting for me http://www.ringofsteel.net/stealth.html to replace my current leather one that's gotten too big for me since I recently lost a bunch of weight. I absolutely love it because I can wear it anywhere & even hang a pendant from it so it just looks like a necklace. It also locks very discretely (the lock is hidden) and Master will keep the key so that it can not be removed without him.