On the packaging box.

When you buy a cup, the model number and price are printed on the packaging box. Different models have different prices.

Wanxiang is a trademark brand of Shanghai Hongchen Household Products Co., Ltd.

Business scope: thermos bottles, ice buckets, magnetic therapy cups, condiment bottles, lunch boxes, non-electric portable refrigeration boxes, non-precious metal cups, non-precious metal household or kitchen containers, daily use Glassware (including cups, plates, pots, and jars), daily enamel plastic utensils (including basins, bowls, plates, pots, and cups), food thermal containers, and bathroom utensils.