The soap is made of food grade stainless steel with FDA certificated. The soap holder is polypropylene in material. Features durable and repetitive on soap. The stainless soap enables you to quickly remove onion, garlic, fish and other powerful odors from your hands. Customized imprint is available. Also other shapes of soaps are available, such as round, heart and square one. Please inquire. 3 7/16"L x 1 13/16"W x 7/8"THICK