Rubbered surface for effective protection: The rubber coating provides good friction and helps prevent scratches and damage to surfaces under pressure or other sensitive materials. High-strength neodymium magnets: Rubber-coated neodymium magnets offer strong tensile force. 43mm diameter with over 10kg holding power. M6 thread: Includes threaded stud with M6 screw size, ideal for screwing and assembling applications. Versatile use: Threaded rubber-coated neodymium magnets can be used to attach car lights, side mirrors, doorbells, cameras, solar lights, and tools in the workshop. Additional uses may be discovered with continued use. Package includes: 8 x rubber-coated neodymium magnets with M6 threaded studs. Each magnet comes with nuts, washers, and spacers. Color: Black Material: Rubber Package Contents: 8 x Rubber-coated neodymium magnets with M6 studs Note: Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3cm.