household and sanitary appliances. According to the rules of inquiring about the invoice issued by pharmacies, watering can belongs to group 216, category 21 of trademark classification, belonging to daily-use and sanitary appliances, so it is a daily-use and sanitary appliance. Invoice refers to the business vouchers issued and collected by all units and individuals in buying and selling goods, providing or receiving services and engaging in other business activities. It is the original basis of accounting and an important basis for law enforcement inspection by audit institutions and tax authorities.