Features: Super Strong Double Sided Pulling Round Neodymium Magnet. The Traction will be influenced by many factors: the material's material, effective area, the softness of the surface, to the direction of traction, temperatures, material type, thickness, flatness, friction , etc.), its quality (eg 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. and other body parts can get severely pinched between two attract magnets. Strong magnetic attraction and easy to carry. MAX Pull : 200KG/300KG/500KG Specifications Material: NdFeB Magnets and M8 Steel Plate. Diameter: 48mm/60mm/75mm Length of rope: 20m Package Includes: 1 x48mm/200KG Magnet 1 x Ring 1 x 20 Rope Material: Metal Label: Yes