Card sleeve

A card sleeve is like a little jacket that you can put on your cards to keep them safe and protected. Just like how you wear a jacket to keep yourself warm and safe from getting sick, card sleeves help keep your cards safe from damage and wear and tear. They are usually made out of a clear or transparent plastic material, so you can still see your card through the sleeve. By putting your cards in sleeves, you can make sure they last a long time and stay in good condition, so you can use them over and over again.