This product works but you will be very surprised to find that it is a very thin piece of molded plastic. The box it comes in is probably more expensive than the plastic collar. And it's $25? For what? It's a bit thicker than the plastic collar you get with the new shirt. If this thing was cheaper I would buy enough to preload all my shirts. But for $25 I only bought one. I know, I know! I didn't have to buy it, but there's nothing quite like it. This would be a great opportunity for a Chinese fake. However, this works fine. It doesn't move much, but I had to use nifty points to keep it in place.