Well, we've worked it out, you'd think :), since we're offering adult toys here, right? But it's part of medieval history. The first mentions come from the Crusaders, who wanted to make sure they didn't grow antlers when they returned from their expedition. However, the real finds, according to available sources, are from the Renaissance. So for those modern Crusaders in ties who go on long business trips (expeditions), we would recommend this thing. Good news for women :) ... we'll send replacement keys on request and we'll work out a price. This chastity belt made of sheet metal by an armourer, decorated. Due to laws that require hygiene tests on everything that comes in contact with human skin, we are selling this product as a decorative replica for the interior.