Dimensions and specifications: Steel pan diameter 16 mm.Adhesion / Retention 8kg. Versatility: You can use these eyebolts in kitchens, bathrooms, model making, workshops, assembly, inserts and many other places in your home and office. Blink hole magnets can be used to hold a variety of objects. High-quality materials: Eyebolts (rings, eyelets, eyes) and pots made of galvanized steel, integrated Wukong neodymium magnets NdFeB; The same is true for galvanized surfaces, threaded eyelets and eyebolts. Durable: Ni+Cu+Ni triple layer coating providing a shiny and rust resistant performance. The steel cup will protect the magnet from chipping or cracking.neodymium is a kind of rare earth metal, it's suitable for making permanent & powerful Satisfaction Customer : If the items you received is defective, please inform us within 7 days upon receipt of item, we will replace another new one., Weight: 0.5070632026 pounds, Manufacturer: Wukong