5 x 20mm x 2mm ROUND DISC BLOCKS STRONG CHEAPEST AND BEST ON EBAY
20mm x 2MM N52 ROUND DISC BLOCKS SUPER STRONG RARE EARTH NEODYMIUM MAGNETS -UK. Condition is New. Size: 20mm x 2mm/1.18" x 0.12" (Approx.). Super strong rare earth magnets, they are hard to break apart once they get stuck with each other.