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Absolutely love these. I mostly use them to attached my boyfriend to stationary objects with one half, and the other half will get attached to his leg.

I'm in the middle between like and dislike on these. They are a great pair of cuffs - that's true, but they just don't work well for what Jor and I wanted them for - which was a pair of leg irons that he could walk around in. It might be the width of his male-ankles, but they just tend to pinch his skin because of the width of them. We rarely use them anymore. They still work amazingly if you want your captive to be sitting down, but we wanted him to be walking around.

They haven't lessened in their own durability though. It might be because we rarely use them, but they haven't changed at all in the time we've had them. No rusting or anything. We keep them in the original packaging in a drawer, and no harm or change has come to them since the day we bought them.