The basics 5 x 1.5mm round earring magnets. Superior quality! The benefits These rare earth neodymium magnets are plated with a bright nickel plate (silver color, sometimes called "white" metal). Comes with four magnets per set - enough to complete one pair of earrings: one magnet for the front of each earring, and another for the back of each earring. The uses Best for lightweight earrings, including polymer clay designs. Great for men's earrings, or as an alternative to traditional non-pierced clip-on earring components. The bottom line The pull rating for these Grade 35 magnet sets is .64lbs.