Eva Solo Knife Magnets - are sold in Sets of four. These knife magnets offer greater flexibility than most conventional knife blocks. You put them just where you use them. Alternatively, all your knives can hang together on the wall, like a sculpture. Each of the circular magnets can, depending on the size of the knives, hold two knives simultaneously. A single magnet can easily cope with your largest cook's knives or even your cleaver. One single magnet can easily cope with your largest cooks knife or even your cleaver. The magnets are enclosed in Stainless Steel with non-slip rubber fronts. Screw the fittings onto the enclosed screws and mount the knife magnets on the fittings - magnetism holds them in place. The knife magnets are easy to clean - but are not dishwasher proof. The knife magnets are easy to remove for cleaning. Always remember to place the knife magnets out of reach of children.