Specification:

Size : 21x12x9 mm Y30 
Grade : Y30
Color : Black
Length : 2.1   cm ; 
Width : 1.2 cm ; 
Height : 0.9 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.