Specification:

Size: Ring 60-32x10  Fe   
Outer Dia: 6 cm
Inner Dia: 3.2 cm
Thickness: 1 cm
Grade: Y 30
Color: Black
Max Operating Temperature: 300°C   

Description:
Ferrite also is known as Ceramic Magnet is a Composition of iron oxide and barium or strontium carbonate. These materials are readily available and at a lower cost than other types of materials used in the making of Permanent magnets.