This is a great item. My son- in- law installed it in about 2 minutes.  I had not seen one until my daughter had one above her counter.  I have mine above a rolling cart that I don't move.  I put all of my large knives on it that are too big for the drawer.  It is so easy to just grab one when I need it and put it back on the magnet, when it comes out of the dishwasher. I love this item. Even heavy knives stick to it.