Set Includes 11.75 in. Expandable Organizer and 15.25 in. Expandable Organizer. Both organizers offer a custom knife storage place in a drawer or on a countertop. Simply connect each individual item thanks to the strong invisible magnet. Unique design allows for convenient access to all the knives: they are kept organized and ready to use. The knives are safely stored without damaging or dulling the blades. Made from ash wood, a very durable wood.