SUNKEE (2-pack) Salvage Magnet,62 Pounds Magnetic Hook , Round Base Magnet Fastener with Eyebolt Chrome Plate ,1.65" Diameter, 1.54" Total Height Material:Strong Neodymium magnet + A3 steel + 304 ring Theory of vertical force:62 Pounds (28kg) The theoretical level of tension:6.6 Pounds (3kg) Size: 1.42"x1.8" (Diameter*Height) Working temperature: 175F (80) Application scope: containing iron nickel material panel,The magnetic circuit of A3 steel and magnets made,magnetic force is developed to the maximum,at the same time protect magnet not easy rto broken Adsorption on the refrigerator and put the key. Adsorption in any place where have metal and can hang items