Abstract: Nonlocking plastic containers having shoulders that are spaced uniformly along the outside of a container for abutment with a plurality of shoulders on the inside of another one of the containers into which it is nested. The shoulders divide the container into a plurality of segments of uniform height and these segments are preferably tapered by an angle that is no greater than will cause the outside diameter of an outside shoulder at the bottom of a segment to be greater than the inside diameter of the inside shoulder at the top of a segment. The shoulders may be rounded in which case at least three abutments are provided to insure that the inside and outside rounded shoulders of nested containers will stay opposite each other.