Specification:

Size : 9x3  mm
Grade : Y30
Color : Black
Dia: 0.9 cm; Thickness: 0.3 cm   

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.