Using this deck box is easy. First, you can take out the removable card holders and fill them with up to 200 double - sleeved cards. Put the card holders back into the box. If you want to change the display, you can tilt the box or clip the removable flaps to the back. You can access the cards in the holders and the accessories in the drawer separately. For left - or right - handed users, it's equally comfortable to use. When closing the box, the powerful magnets will keep it shut securely. As for maintenance, keep it away from sharp objects to avoid scratching the Nexofyber surface. You can gently wipe the microfiber interior with a soft cloth if it gets dirty. Don't expose it to extreme heat or cold as it might damage the materials.