Specifications (1”=25.4mm; 1lbs=0.453kg) Materials: NdFeB Grade N42 or other high grade Dimensions(mm): 2"*2"1/2" squar magnets Plating: Zinc plated Br:1.28-1.34T Hcb ≥ 923 KA/m Hcj ≥ 955 KA/m (BH)max:318-334KJ/M3 Curie Temp.310℃ Working temperture : 80℃ Tolerance:+0.1mm/±0.05mm Magnetizing:Magnetized in pair, half with N on outersid face, half with S on outerside face