Ring of Magnetism (EDS) - Yugipedia - Yu-Gi-Oh! wiki
Universal Magnetic Ring Degaussing Ring Screwdriver Bit Magnetic Ring Powerful Ring 6.35mm Shank And Round Rod Dia 4/5/6mm Bit - Screwdriver - AliExpress
Ring Radial Magnetization Sensor Magnet | Ring magnet, Magnets, Rare earth magnets
Radially Oriented Ring Magnet - ALB Materials Inc
K&J Magnetics - Magnetization Direction
Sintered NdFeB Radiation Magnetic Ring | Stanford Magnets