1. Type: Pot neodymium magnet 2. Material: Neodymium magnet + A3 steel cup + ABS plastic ring or Epoxy resin. 3. Shape: Round with countersunk hole 4. Dimensions: D12,D16,D25,D32 mm and etc. Cleck here to check the catalog of pot magnets 5. Grade of Magnet: N35,N38,N42,N45,N50,N52 6. Surface Treatment: Nickel,Zinc,Epoxy or Electrophoretic colorful paint 7. Magnetized: Axial Magnetized 8. Max working Temp.: -40℃ to 80℃ (for higher working temp. can be customized)