Sold as a pair, these grinder burrs are suitable for:
ISOMAC   for Coffee Grinder (ISOMAC) GRANMACININO
BRASILIA   for grinder-Dispenser (BRASILIA) FM
IBERITAL for grinder-Dispenser (IBERITAL) MINIMOLINO
ROSSI for grinder-Dispenser (ROSSI) FM
 
 
Specifications are: External diameter 38/30 mm. Internal diameter 26/7 mm. Thickness 17/20.3 mm.