10 20 50pcs/Lot 8x4mm 8x3mm Black Small Round Magnet Fridge Ferrite Magnet Permanent Magnet Round Speaker Magnet
https://www.vogueparade.com/shopping/EN/42/1/1005003620116093/10-20-50pcslot-8x4mm-8x3mm-black-small-round-magnet-fridge-ferrite-magnet-permanent-magnet-round-speaker-magnet//