ApplicationSuper Strong Double Sided Pulling Force Round Neodymium Magnet. The Traction Force will be influenced by many factors: the material\'s material, effective contact area, the softness of the surface, to the direction of traction, temperatures, material type, thickness, flatness, friction levels , etc.), its quality (eg rust delivery), its size (thickness plus total area), etc. The big magnet is extremely strong, and must be handled with care to avoid injuries and damage to the magnets. Fingers and other body parts can get severely pinched between two attract magnets. Strong magnetic attraction and easy to carry.SpecificationThe sum of two - sided suction: 500KG Diameter: 75mm Length of rope: 10m Usage: must be perpendicular to the surface of the magnet, and completely in contact, in order to achieve the maximum suction, there is a diagram for reference.Package Includes1 x Magnet 1 x Ring 1 x Rope