Tik Tok sells topaz for delivery to the base. According to the relevant information inquired, in order to protect consumers, since July, Tik Tok's jewelry and Wan Wen products can only be opened after entering the base. And the jewelry sold in Wan Wen must go to BIC (Integrated Quality Inspection and Delivery Center), that is, it must be inspected and delivered in the quality inspection warehouse of the base. This avoids possible fraud and replacement by unscrupulous merchants. It can ensure that the jewelry Wan Wen purchased by consumers is authentic.