So the strap locking function works fine. I had no problems with this part. The part that makes me give a bad review is how the buckle attaches to the back of the belt. This is a small clip with teeth. I'm sure it's designed to be easily removed so you can change the length. But you very rarely do. The belt is not reversible, so that's not the reason. However, this bracket will open if you don't put it on, causing the buckle to fall off. You need to find it and reattach it. However, this can damage the back of the strap, so you'll have to trim it back a little by trimming it every few times it falls. If they just made screws like they have 98% of the straps in the back that would be great. But the belt he accidentally fastened is not an acceptable design.