Tissue is not a structure. Foam peanuts are not a structure. A plate needs a rigid sandwich; a jar needs a suspended cavity; a gaiwan needs its lid immobilized so it cannot become a hammer.
Qingci double-boxes. The inner wrap is air-column plus foam. The outer carton is double-wall. Anything that arrives broken is refunded in full — not because packing never fails, but because the customer should not have to argue about clay.
Orders dispatch from China within three days. Tracking follows. If a carton is crushed, photograph it before you discard the box.