The top metal piece on all of these types of knob are sharp and jagged.  We filled down most, touched up then painted over all edges with a thick coat of clear nail polish to eliminate any sharp metal bits that will snag clothes / any fabric. We also had to cut down all the screws on the inside to flush with the nut...and then spend quite a bit of time filing down the rough edges on the cut screws. So they are good looking and inexpensive and they look great.... but we put a lot of time and elbow grease into making them workable.