10PCS Amorphous Magnetic Ring 12x8x4.5mm Nanocrystalline Ultra Microcrystalline Transformer Magnetic Ring JK-1204 White Shell

10PCS Amorphous Magnetic Ring 12x8x4.5mm Nanocrystalline Ultra Microcrystalline Transformer Magnetic Ring JK-1204 White Shell

Aliexpress UK