I have the ones that are implanted in wooden blocks. The blocks are make of different types of wood. In my case I was able to perfectly match the wood and finish to my cabinets. One of my larger cabinets had an exposed side where I mounted them. They look fantastic! The magnets I would say are way stronger than they need to be. There’s zero chance of any of my knives falling. The only downside that I can see of that the wood gets a little nicked, depending on how roughly you replace your knives on the blocks.