* The magnetic toys also called Neocube magnetic balls.It commonly has four plating methods, and form four colors, include gold, nickel, silver and black, as the picture shows. * We always packing 216 pieces together as a whole, and then put them in a transparent film.At last, packing them in a special customized metal box with high quality sponge to protect the balls.If you do not like the metal box, we can also pack them in the strong carton. * The common size is Diameter 5, 6mm, and the smallest size can be 3mm. * Sample: available * We supply magnets as per customers' requirements. * Waiting for your early kind replies and orders. * We are always ready here to serve you.