Is that one of them magic picture things? Stare at it long enough, something will appear behind the lady
Welcome to Benny Hill's interactive posting game. (Delete as appropriate to leave your Benny Hill Double entendre of choice) Lovely pair of big Pots/Jugs/lungs/Cylinders on that one indeed. .
It's a matter of physics however that once a set of 'Cylinders' gets to that size they need visible fasteners to hold them in place.