<p>EXCELLENT QUALITY: The surface of the magnets has a triple coating: nickel-copper-nickel. The solid metal surface protects the magnet from breakage, which significantly increases its lifespan. Perfect Size Ø Powerful Magnet: Product size: 24 pieces Ø 12 x 16 mm. Each neodymium magnet can hold up to 20 sheets of A4 paper on a metal surface (only 10 sheets of A4 paper on a whiteboard). General Use: Ideal for attaching paper, photos, cards and notes to various metal surfaces such as refrigerators, whiteboards, aluminum shelves, etc. Also suitable as a hook for hanging keys, etc. [Not suitable for magnetic glass or magnetic glass plates!] Easy Grip Ø Relocation: The extremely easy-to-grip tapered handle makes it easy to attach or move the magnets. Packed in a portable storage box for better storage of your magnets. Never lost a magnet! Warning: 1. Not suitable for children under 3 years old. There is a risk of suffocation if small parts are swallowed. 2. Keep away from patients with pacemakers and defibrillators! Ideal for living room, kitchen, office and school. 3. The perfect size and super magnetism not only affect the beauty of the photos, but also can fix the photos stably. It is the best choice for organizing photos. 4. With the convenient handle, the magnet can be used as a hook to hang keys, dry towels and other small items. Easy to use and remove to make meetings more organized and smooth. 5. The corrosion-resistant nickel alloy steel housing extends the life of the magnet. The magnets can be used for a long time.