To easily remove a lid even when viscous content sealed in a container is deposited on an inner surface of the lid.

In a container of the type in which a lid 3 is capped on a cylindrical part 10 in which the upper end of a container body 2 is contracted via a stepped face 9, an auxiliary tool 15 for detaching a lid is turnably attached to the outer side of the cylindrical part 10, the stepped face 9 is formed in a wavy form or a saw-toothed form having a ridge part 16 and a valley part 17 in side view, a lower face 18 complementary to the stepped face 9 and the stepped face 9 on the auxiliary tool 15 for detaching the lid are abutted on each other, and the auxiliary tool 15 for detaching the lid is turned. An upper face 21 of the auxiliary tool 15 for detaching the lid is abutted on a lower end 3a of the lid 3 to push up the lid 3.