PROBLEM TO BE SOLVED: To provide a container that can suppress spring-back and easily crush even a shape with symmetric properties.
SOLUTION: The container includes a helical structure cylindrical part 6 provided between two ring parts 5 next to each other in the axial direction. The helical structure cylindrical part has multiple inclined straight lines 23 which are ridge-folding lines when viewed from the outside of the container 1 and arranged at approximately equal intervals in the circumferential direction. The helical structure cylindrical part is folded as if being put inside of the ring on one side. Of the torsional angle from one end 23A of the inclined straight line to the other end 23B in the circumferential direction of the helical structure cylindrical part, if the radius of the first ring part of the two ring parts is r, the radius of the second ring part is R, the number of the inclined straight lines is n, and the length of the helical structure cylindrical part in the axial direction is h, the torsional angle defined by the format below is more than θ0.(F1)
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