The hardware looks great, however do some serious measuring before purchasing this or the doors. 

First, buy a track that is longer than the opening. A 48” track is not long enough for a 48” opening, so size up. You need extra room for the stoppers on both sides. 

Second, allow for an extra six inches of door overlap when closed, not half an inch like normal bypass doors. They will never separate less than that. I drilled eight holes into 300 worth of non returnable solid doors (which you should be using for a track like this). A 48” door opening needs at least total of 54” worth of door. I should have bought two 27” doors.  I feel none of this was explained in the details, but I may have just missed it.