Finally a full metal jacket for your knight in shining armour! Unfortunately this condom won't do much when it comes to providing any real protection or for holding down the fort. It's good for a laugh though, and it definitely tops the list of great novelty items to add to any growing collection.
Implications - These chainmail condoms are available in either steel or copper, though it really doesn't change how it feels if you try to put it on. But if you for some reason you decide to, be thankful that the company says that it's not prone to rust or oxidation. However, given the medium of these pieces, some may understandably just choose to just use them as decor pieces.