Mini bags generally refer to phone bags, card holders, wristlets, etc. This kind of package has strong function orientation. Card holders has always retained its status in the popular trend. People are still used to taking card bag as an indispensable daily necessities. The capacity of the wristlets will be relatively large. Because of the wrist strap, it can sometimes replace the wallet for commuting and is not easy to lose. Phone bag is very popular in recent years. It can not only protect the mobile phone, but also act as a card bag. It is deeply loved by young people.