10mm x 5mm (approx. 3/8"x3/16") N35

Super Strong Round Discs Rare Earth Magnets

Specification:
Dimensions: 10mm x 5mm thick (approx. 3/8" x 3/16" thick)
Tolerances: ±0.2mm x ±0.2mm 
Plating/Coating: Ni-Cu-Ni (Nickel)
Magnetization Direction: Axial (Poles on Flat Ends)
Weight: 2.85 g (0.1oz)
Max Operating Temp: 176ºF (80ºC)
Pull Force: Approx. 5 lb (2.25 kg)
 
Material Features:

Magnets are made of a brittle material. These magnets are not as strong as steel.  They are more like a brittle ceramic.  If you let two magnets slam together, they can crack and break.  This is true for magnets large and small.