Our magnet base is made of high-quality material. It is strong, rust-resistant, wear-resistant, and exquisitely crafted with support, making it ideal for various applications in daily life. You receive 24 mounting magnets, each measuring approximately 1.69 inches (43 mm) in diameter and 0.24 inches (6 mm) in height, with M6 x 0.4 screws (10 mm thread length), suitable for mounting lamps, blackboards, and other items. The rubber coating on the magnet helps protect its magnetic strength and prevents breaking or deformation during normal use, thereby extending the magnet's service life. Additionally, the smooth surface helps prevent scratching of surfaces. This magnet features a countersunk center hole design, ideal for screw installation. Screws are included to assist with easy installation. These stud magnets are suitable for securing work lights, car lighting strips, display panels, automated equipment, tools, machines, calendars, maps, signs, dry erase boards, and more. They are widely used in homes, warehouses, garages, workshops, offices, classrooms, schools, and other locations. Specifications: 24 pieces Color: Black Material: Rubber Package Contents: 1 set * magnet mount Note: Other products are not included. Light reflection and differences in display screens may cause slight variations in the color of the item shown in pictures compared to the actual product. Measurement allows an error of +/- 1-3 cm.