64pcs 10mm Magnetic Balls Magnet Spheres Silver_Non-Twisty Puzzles_Cubezz.com: Professional Puzzle Store for Magic Cubes, Rubik's Cubes, Magic Cube Accessories & Other Puzzles - Powered by Cubezz
10mm x 5mm N52 neodymium magnets round discs 3/8in x 3/16in