Save some money koi fish card is a card that can save people money continuously. As a member, you can enjoy more than 200 privileges, including eating, drinking, shopping and refueling. At present, koi fish card can be used to refuel in 326 cities across the country, with great concessions. For example, in a gas station I often go to, I can spend 2.74 yuan less per liter of 92 # gasoline with koi fish card, which basically saves tens of dollars every time I refuel, which is very cost-effective.