LIPS handcuffs are the best in the world! And I’m not just saying that because they are Dutch (like me!), they just are. Comfortable (no sharp edges), hinged (very important), and light weight! Of course they have double locking and they can be folded for easy storage. AND… I still have a lot of trouble escaping from them when my arms are crossed behind my back. Do you want to know where to buy them? It is very hard to get them (I am not allowed to tell you why), but you can buy a pair here, it is worth it!!