Most people think of using actual metal locks on chastities, which of course, metal is ALWAYS sexier... But honestly, we prefer using keyholder tabs for a few reasons... they're lighter, they won't get you stopped if you try to board an airplane, but mostly, we prefer them because they keep you honest. You can't remove them unless they're cut off. This is especially important for our distance domination boys (as they would have the key to their locks) - we'll write down the code from the keyholder tab and request random photos so we know you have not removed or replaced it. If we have requested you purchase a chastity, then you need to buy these as well.