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 circular and placed in the centre of a 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 known as cānzhuō zhuànpán (餐桌转盘; 餐桌轉盤; 'dinner-table turntables').