Using the Gamegenic Triple Deck Holder 300+ XL is simple. First, decide how you want to organize your cards. You can put different decks in each of the three removable holders. When you're ready to play, just open the lid wide thanks to the Cobra Neck technology and take out the cards you need. As for the colors, pick the one you like the most. You can write the name of the deck on the write - on strip on top. When it comes to maintenance, keep it in a dry place to avoid any damage to the box or the cards. Don't overfill the deck holders as it might affect their ability to hold the cards properly. And if the box gets dirty, you can use a soft, dry cloth to clean it.