All boxes are designed and carefully milled out of single piece of high quality Hardwood. The most popular being Walnut, Mahogany, Purple Heart and Maple. They are meticulously hand-worked in order to ensure a high quality product that will last. Natural tung oil is used to bring out the beauty of the wood and provide a durable finish. No dyes or stains are used. Boxes are lined with velvet and snap closed using strong rare earth magnets.