①Exclusive patented design, exclusive exclusive.
②Raw materials using food grade PP, in line with the FDA Food and Drug Administration standards.
③fold up and down repeatedly use more than 200 times without breaking.
④The lower ring boss and the upper cover close when the dust-proof role, the upper cover plug closed to the bottom ring eaves to play a moisture-proof sealing role.
⑤humanized design, unique shape fashion. Anti-theft peeling design is reasonable, transportation, friction, display is not easy to break, automatic assembly more smooth.