This card case is designed specifically for UNO but will also work with any other game made by Mattel such as Lowdown, Bold, and DOS. There is also an optional feature to add magnets to hold the lid in better, but it is not necessary and the container will work just fine without them. If you do want magnets they use four 8x2mm rare earth magnets. This container also has a very ergonomic design to taking the cards out and can be done comfortably and neatly. The lid is held in by a smooth gliding track that keeps the cards in safely.