Bottle, has lower and upper side guidance units, where lower unit has central stud in centre of base that is curved inward and upper unit has crater shaped unit that serves for admission of lower unit at preceding bottle

摘要

The bottle has lower and upper side guidance units, where the lower unit has a central stud in the centre of a bottle base that is curved inward and the upper unit has a crater shaped unit at a rotary end (6). The crater shaped unit serves for admission of the lower unit at the preceding bottle. A cap shaped attachment with the crater shaped unit is arranged above the rotary end, where the attachment has an elastic material.