Yi Xing (pronounced Yee-Shing) is a city in China located in Jiangsu, Province. It is known throughout the world for the deposits of rich clay in its surrounding landscape. 

A tea pet is a figurine from China,  usually made from yixing clay (also known as 'zisha') and ceramic. Tea lovers in China keep these small pottery figurines as an ornament or a good luck charm. Pouring or "nourishing" the tea pet by pouring tea over it is part of a traditional Chinese tea ceremony, and are usually placed on tea trays when one is making tea.

• Pu'erh tea is often considered the most suitable for raising a tea pet. This does NOT mean other tea types such as black, green and oolong tea are unsuitable. However, you should consistently use one tea type when taking care of the pet.
• Pour tea regularly on the pet. Don't use plain water! Over time your tea pet will slowly develop a scent of the tea that you drink.