Standard Portable offers its signature line of heavy duty industrial magnets. The #7 Stock Magnet is manufactured with a powerful Neodymium magnet that provides an approximate 33 lb pull. Neodymium magnets (also known as "rare earth magnets") are extremely high strength and low cost. This rugged industrial magnet is manufactured with a durable urethane rubber coating that is corrosion and temperature resistant. The base of the magnet measures 2-1/2" x 1-15/16" x 2-3/16"". Standard Portable Signature Industrial Magnets are exclusively produced in the USA at our manufacturing facility.