To use these card sleeves, simply slide your cards into them one by one. This will not only protect your cards from dirt, scratches, and wear but also make your gaming setup look cooler. When shuffling, you'll notice how smoothly the cards move thanks to the great design. As for maintenance, keep them away from sharp objects to avoid tears. If they get dirty, you can gently wipe them with a soft, dry cloth. That's it! Enjoy your gaming with these awesome sleeves.