I had an old dodgy case in which the buttons were worn and weren't connecting properly with the electronic connection to open the car. The plastic attachment was gone and I held it together by a piece of cleverly placed string, but of course I was always conscious of loosing it!
This replacement case, which is empty, delivered very quickly, no fuss - and was perfect.
However one of the wee connecting prongs was slightly bent (didn't snap off) but it just needed straightening and to be carefully placed into the 'snap on' upper case. This isn't a major problem and don't let it put you off buying it!
And now, my fob looks as good as new, is sturdy and a delight to use! Would definitely buy again!
Hope this helps!