A card holder is a small accessory designed to store and organize various types of cards, such as credit cards, business cards, or identification cards. Typically made from materials like leather, plastic, or fabric, card holders come in various styles and sizes, making them convenient for everyday use. They help keep cards safe from damage and make it easy to access them when needed. Many card holders feature multiple slots or compartments, allowing users to carry several cards without bulk. Some designs also include additional features like RFID protection, which helps prevent unauthorized scanning of cards, ensuring the security of personal information.