2 whereas the accessory 3 is located at least substantially in the outside 8 of the receptacle 2 what was just described in the case of a 3d pocket can be transposed in the case of a 2d pocket and to the case of a rigid receptacle 2 the device 1 such as most often the accessory 3 has a longitudinal axis 1 a that is placed at least approximately perpendicular to the wall 6 the inside 4 of the receptacle 2 is conventionally defined as the inside zone in the receptacle 2 delimited by the jacket of the wall 6 located on the side where the largest part of the contents is located the outside 8 of the receptacle 2 is defined as the zone that is located on the other side of the jacket of the wall 6 the rigid means for holding the receptacle 2 from the outside when they are provided comprise a passageway for the connecting device 1 located opposite or approximately opposite the opening 7 the term u201c accessory u201d does not mean that the object 3 that it refers to would be secondary or simply optional but that this object 3 is complementary and depends heavily on the receptacle 2 and the contents of the.