Specification: Brand new Shape: round Plating: Ni-Cu-Ni (Nickel) Material: NdFeB (Neodymium) Magnets Type: Neodymium Hole diameter: approx. 4mm Size: approx. 10x5 mm (Dia. x T) Rating: N50 Qty: 10pcs Circular Disc Magnets can be fixed in place using adhesive or can be pushed into circular drilled holes in wood or plastic, many new packaging designs use Neodymium magnets cleverly trapped behind laminations of cardboard to provide invisible closing mechanisms for folders, gift boxes, name badges and even greetings cards than stick to your refridgerator! Package included: 10 x magnets Note: Please allow 1-2mm errors due to manual measurement Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same