The NOL card is a smart card used for public transportation in Dubai. It allows users to pay for rides on the Dubai Metro, trams, and buses easily and efficiently. The card can be loaded with various amounts of money, making it convenient for both residents and tourists. Users can purchase a NOL card at ticket machines, retail outlets, or online. There are different types of cards available, including the Red Ticket for occasional travelers and the Blue Card for regular users, each designed to meet different travel needs and preferences.