Powerful Magnets, 12 Pieces, N52 Neodymium Magnets with Storage Box, 12x16mm Extremely Strong Fridge Magnet for Blackboard, Magnetic Board, Refrigerator - Mini Portable Magnet

Extremely Powerful Magnets - Each neodymium magnet has a super strong adhesive force (N52 neodymium magnet), easily able to hold up to 22 sheets of A4 paper, photos, banknotes, and other items. Caution: These magnets are not suitable for glass magnetic boards! Size: 12 x 16 mm. Superior Quality - The magnet is made of neodymium, one of the strongest and most permanent magnetic materials. The surface of the magnets is triple-coated: nickel-copper-nickel. This protects the magnets from corrosion and extends their lifespan. The smooth surface won't scratch your magnetic board or refrigerator. Very comfortable to use – They have a nice shape that is easy to grip, easy to install or remove. Much more practical and easier to separate than round magnets. Wide range of application: Can be used to collect or arrange photos, printed papers, notes, receipts, and other items on the blackboard, refrigerator, bulletin board, and other magnetic surfaces. It can help you organize and save space anytime, anywhere.