GRADE N45 neodymium-iron-boron (NdFeB) NEODYMIUM MAGNET with 33 LB of holding force per magnet and 13,200 internal GAUSS
NI+CU+NI TRIPLE LAYER PLATED, THE BEST COATING AVAILABLE. Tight tolerance +/-0.002"
MAX OPERATING TEMPERATURE: 80°C/176°F MAGNETIZED THROUGH THICKNESS so that the N and S poles are on the opposite flat surfaces
HIGH QUALITY MAGNET made under ISO 9001:2008 certified management system
30 DAYS MONEY BACK GUARANTEE: If there is a problem, we'll refund every penny (or replace it)