To attain an improvement in decorativeness, convenience of housing, reduction in manufacturing cost or the like by providing a pot cover whose thin plate-like main body is used in a cylinder shape.

A mushroom-shaped engaging projection part 2 is formed on one end of a rectangular thin plate-like main body 1, and an engaging hole 3 having a narrow width is formed on the other end. When this is ised as a pot cover, the thin plate-like main body 1 is rounded in a cylinder shape, and a head part 2b of the engaging projection part 2 is bent, and is formed in the almost same width as a neck part 2a, and is inserted into the engaging hole 3, and bending of the head part 2b is extended on the inside of a cylinder, and is formed as a slipping-out preventive member.