A Lazy Susan is a turntable (rotating tray) placed on a table or countertop to aid in distributing food. Lazy Susans may be made from a variety of materials but are usually glass, wood, or plastic. They are usually circular and placed in the center of a circular table to share dishes easily among diners. Owing to the nature of Chinese cuisine, especially dim sum, they are common at formal Chinese restaurants both in mainland China and abroad. In Chinese, they are simply known as 餐桌转盘 (p cānzhuō zhuànpán) or "dinner-table turntables".