10X Neodymium Countersunk Ring Magnets Strong Screw Disc 20*3*5mm / 20*5*5mm UK
Each magnet has a countersunk hole on one side. Neodymium magnets are the most powerful magnets available. Also known as rare earth or NdFeB magnets. 12Pcs Heavy Duty Fixing Point Anchor Lashing Eye Tie Down Loop Black D-Ring Hook.