I really like these. They are super light and having the key hole on both sides is awesome, what a great idea. They are so smooth right out of the box. I didnt have to break these in at all. I have applied these cuffs even without loading them, and they go on so easlily it amazing. They are a bit thicker than standard cuffs. I tried them in some standard size cuff cases and they fit, others they did not. I ended up buying the ASP cuff case specifically for these, and I like the case. So just fit test them. I have had people tell me they are not as strong as steel, but I have not ever had anyone break out of them. I have seen people break steel hinge cuffs while on PCP, so the way I look at it, is that no cuff is 100% indestructable. These held up just as well as any of my steel ones so far.