This knife storage system is ideal for knives because the open design allows air to circulate around them so they dry quickly and stay dry while not in use. The unique design is so beautiful you'll want to have it front and center in your kitchen. Each units measure 12" high x 5" wide x 1 1/4" thick and id made from solid black walnut. Other wood types are also available by request. Rare earth magnets keep the individual units aligned so you can add many units as you need!!