... , Besides producing ferrite speaker magnets, we are providing powerful Neodymium speaker magnets with the shape of ring, disc, block, cylinder, block and segment.Features ... :We supply hard magnets and magnetic materials from China. Our magnets include ferrite magnets, flexible magnets, NdFeB magnets, alnico magnets, SmCo magnets, rubber magnets, refrigerator fridge magnets, magnetic powder, magnetic ...