Neodymium magnets, 5mm diameter x 2mm thick, 30 pieces. 5mm x 2mm are standard values. Actual thickness is approximately 1.9mm. There are individual differences in size. We will quote for your desired quantity. Please inquire. (Up to approximately 2000 pieces depending on stock availability) Applications: Model making such as plastic models, crafts, etc. *Neodymium magnets may have scratches or dents from the manufacturing process. Please understand beforehand that these are within a range that does not affect usability. ◆Please use if you are 14 years of age or older. ◆There have been several serious accidents where children have swallowed them and required abdominal surgery. To prevent accidental ingestion, please keep them out of the reach of children.