These are ridiculously solid shelves and brackets!!  I couldn't believe how beefy they were once I got them.  They're very sturdy and can hold a lot of things.  Be sure to mount them with anchors if you're going into drywall.  They will certainly pull out of the wall after time if you don't.  I'm very happy with the quality of these shelves and am happy every time I walk in the room and see them.