Amazon.com: Wtohobby Magnetic Soma Cube Block- Children's Educational Toys Magnetic Tiles for Kids Stress Relief Toy Puzzle Cubes to Develops Intelligence, Ideal for Birthday Gifts (Crystal) : Toys & Games
N52 Magnet Cube 3/8" x 3/8" N52 Neodymium Rare Earth 9.5mm x 9.5mm