Amazon.co.jp: LEC O-266 Auxiliary Plate for Magnet, Silver, 1.8 x 0.1 x 2.0 inches (4.5 x 0.3 x 5 cm), Pack of 2 : Home & Kitchen
NdFeB Disc Diameter D15X5mm with M5 Countersunk Screw Hole Holding Magnet Neodymium Permanent on Sale - China Countersunk Magnet, Neodymium Magnet | Made-in-China.com
MUTUACTOR 2Pack Super Powerful Neodymium Cup Magnet with 1/4''-20 Male Threaded Stud, 100lb Vertical Pull-Force Non-Shattering Magnet Base with Nut and Washer for Lighting, Camera and Other Brackets. : Amazon.sg: Industrial &