Ferrite Ring Magnet OD145 x H20 x ID75 mm Y30BH | Loudspeaker Magnet D_31mm+ This rare earth ring has

This rare earth ring has an outer diameter of 25mm

Each magnet consists of a neodymium cylinder magnet with rubber caps that are reusable

magnetic labels and magnetic tape all come in a wide array of colours

This 12 pack comes in a vibrant pink colour and is coated with hard plastic

Ferrite Ring Magnet OD145 x H20 x ID75 mm Y30BH | Loudspeaker Magnet D_31mm+ This rare earth ring hasThis ferrite ring magnet weighs 1149g and has a pull force of 8. 1 kg. GradeY30BH. It is uncoated and has an outside diameter of 145mm, and inside diameter of 75mm and is 20mm thick. Its direction of magnetization is through height. This ferrite loudspeaker magnet is one of our 'big boys', and it plays an important role in the realm of sound. Ferrite ring magnets are a crucial component in the functioning of a loudspeaker by creating a magnetic field