Membership cards generally refer to ordinary identity cards, including membership authentication in shopping malls, hotels, fitness centers, restaurants and other consumer places. They have a wide range of uses and can be applied to identification cards that need to be identified. Membership cards are divided into VIP membership cards, membership gold cards, ordinary membership cards and third-party membership cards. Members who use membership cards can enjoy corresponding discounts, points, coupons and other benefits when spending. The same is true when punk ballet membership cards are used.