Size: 19mm 200mm,19mm 300mm,22mm 200mm,22mm 300mm,25mm 200mm,25mm 300mm,32mm 200mm,32mm 300mm. 2PCS Cube Strong Neodymium Rare Earth Magnets Block Pull Magnetic. 50 50 25mm N52 Block Super Strong Rare Earth Magnetic Neodymium Magnet.
eBay