Our family has bought many TSA locks before, but this one works a little differently.  When you put in the combination, you slide the non TSA side towards the middle for it to release.  Other lacks lose their resistance and open up or have a button for a release to open up.  This slide to unlock is different and not intuitive.  But this is a minor complaint.

We ordered three, and we received one in blue, red, and silver.  The blue and red were the same:  made out of plastic and worked well.  But the silver one was made out of metal, and I felt that the quality of construction of the lock itself and the loop was substantially higher.  I'm not sure why this is done.