• ?Widely Compatition?Wireless charging, N52 strong magnet standard configuration, high strength electromagnet, provide you with unlimited possibilities. Suitable for all wireless charging devices that comply with QI standards • ?Magnets Coated?Ni+Cu+Ni Triple Layer Coated. The Best Coating Available, which Provides a Shiny and Rust Resistant Protection for the Magnets. • ?Powerful Magnets?Made of Strongest Magnetic Material! Strong Holding Power, Holding Power is not Less than 18 lb per Magnet with Direct Touch and Direct Pull. • ?Magnets Dimensions?74mm x 54mm Thick: 0.6 mm,If you have this sticker, it can makes any cases you have into Magnetic wireless charger sticker case • ?Diy Projects & Science Experiments?Refrigerator Magnets, Shower Door, Work or Office, Scientific Purposes, Arts and Crafts or School Classroom.