Very powerful: made of sturdy magnets with unbelievable size stability. Size: 8 * 3mm. 10 magnets with 10 screws. Very durable: These magnets do not break during normal use, as the magnet is protected in the steel cup, which significantly extends the life of the magnet. Wide range of applications: easy installation in households, companies and schools! Hold, promote, fish, close, retrieve, DIY projects and product manufacturing applications. Useful tool wizard: organize and hang your messy tools, save lots of space and make your life more convenient. Easy to assemble: the magnet has a countersunk hole and can be attached to wooden doors, walls, tables, window frames and other brackets at any time using the screws provided.