Neodymium Multi Uses - They could be used as refrigerator magnets, whiteboard magnets, billboard magnets and apply to anything else magnetic. They also can help storage things or fixate items like charging cables, fountain pens and sticky notes, very useful in home, office or school. Durable Material - Our magnets are made of durable neodymium metal, resistant to corrosion and oxidation, which makes it meet your needs and have a long service life. Useful Design - Despite of its small size (Diameter: 10 mm, thickness: 2.3 mm), each magnet is able to hold at least 15pcs sticky notes. You don't have to worry it's not able to fixate the paper. Easy to Remove - Our classic ordinary magnets will leave no marks or stains after being removed from your fridge or board. You don't need to worry it might scratch your fridge or new table. 100Pcs & a Storage Case - Our package includes 100pcs small magnets and comes with a plastic case for easy storage, which also avoids damage and loss of the magnets during the transportation. Tip: These magnets are very small, so please keep your children and pets away from this product to avoid accidental ingestion. Magnetic flux index (kG2mm2): 0.24.