Due to a unique manufacturing process, Incomparable Buttons are both machine washable and dry cleanable. The process involves numerous firings at extremely high temperatures. The result is a product of exceptional strength and durability. Sew them on with confidence. Each button is carefully hand crafted from a unique mixture of ceramic and stoneware clay and hand painted with an assortment of glazes. The use of natural materials as opposed to plastic, has proven itself to be extremely popular within an increasingly environmentally conscious market.