The big blue box around my daughter's waist is a patch. Daughter's waist blue box acts on human body through navel. According to the relevant public information, when the ingredients in the patch are absorbed through the epidermis navel, it can supplement the lipolytic enzyme in the user's body, thereby decomposing the excess fat in the user's body and improving the metabolic cycle of the human body, thus achieving the effect of lasting slimming and beautifying.