Material: ROUND Neodymium Magnets Grade:N52
Dimension: Dimension: 1.97x1.18" (Diameter 50mm x thickness 30mm) +-2mm (0.1 inch) tolerance
Max Operating Temperature: 80°C/176°F
Please read the manual before use, or you can contact us if you feel sth wrong
Caution: strong magnets are brittle; strong magnet could pinch your fingers badly; if you allow two magnets attract together, it may cracks and the chips could hurt your eyes.