Standard Portable offers its signature line of heavy duty industrial magnets. The #1 Stock Magnet is produced with a sturdy neodymium magnetic base that has an approximate 28 lb pull. Neodymium magnets (also known as "rare earth magnets") are extremely high strength and low cost. This magnet is manufactured with a durable urethane rubber coating that is corrosion resistant. The base of the #1 Stock Magnet measures 2" x 2-3/8" x 2-11/16". This magnet is used on the Standard Portable Magnetic Retrieval Tool MS-2. Standard Portable Signature Industrial Magnets are exclusively produced right here in the U.S. at our manufacturing facility.