The rigid box with a lid can also be a well known design for ‘board’ games that are entirely card-based. Those that don't demand a board in any way, in the case of ‘Cards from humanity.’ The CE mark should be 5mm in peak and all choking hazard labels https://coingenius.news/quantum-d-wave-systems-inc-and-dpcm-capital-inc-announce-effectiveness-of-registration-statement/