These MIKEDE magnets are seriously strong – perfect for all sorts of DIY, workshop, or organizational projects. Each magnet is a powerful neodymium disc (0.79\ diameter, 0.2\ thick) encased in a protective steel cup that boosts its strength and prevents it from chipping. They have a vertical pull force of over 30 pounds! The center has a countersunk hole, so you can easily mount them with the included flat-head screws (24 screws included). This lets you securely attach them to wood, walls, or metal surfaces to hold tools, knives, signs, or even retrieve metal objects. The nickel plating makes them corrosion-resistant. Great for organizing your garage, workshop, kitchen, or office. Use them to hang heavy tools, create magnetic closures for doors or cabinets, or for crafting. They come from a professional magnet brand with ISO 9001 certification. A versatile and powerful set of magnets that are built to last.