The first is to be alive. Mail is not allowed now.

Second, if the living body has died when it arrives at the customer, it needs to be mailed again for free. Because of factors such as express delivery, this is beyond your control.

Third, if your store has no credibility, there will be no customers.

Fourth, people who make money sell hamster supplies, food, cages, small pieces and so on. Selling hamsters does not make money.