Holding and/or conveying system comprising at least one holding device (1, 1a, 1b, 1c, 1d, 1e, 10, 10a) which extends in a linear or strip-like manner and has at least one object (3, 3a, 3b, 3c, 4, 5, 7) which forms a receiving container or a carrier element and is to be held and/or conveyed on the holding device (1, 1a, 1b, 1c, 1d, 1e, 10, 10a), characterized in that the holding and/or conveying system has at least one guide element which extends in the longitudinal orientation of the holding device (1, 1a, 1b, 1c, 1d, 1e, 10, 10a) and on and/or in which the at least one object (3, 3a, 3b, 3c, 4, 5, 7) is provided, the guide element being a tube which has an expandable diameter and has at least one thickened point (21a, 21b, 21c, 21d, 21e, 21f) which forms a counter-holder for the object (3, 3a, 3b, 3c, 4, 5), the object (3, 3a, 3b, 3c, 4, 5) having at least one through-opening (31, 41) or a channel through which the guide element is passed, the thickened point (21a, 21b, 21c, 21e, 21f) being arranged at the through-opening (31, 32a, 41) or in the channel, the thickened point (21a, 21b, 21c, 21e, 21f) being formed by at least one filling body provided in the tube and/or a quantity of filling material provided in the tube, the tube material being stretched at the thickened point (21a, 21b, 21c, 21d 21e, 21f) by the filling body and/or the filling material such that the outer diameter of the thickened point (21a, 21b, 21c, 21e, 21f) is greater than the inner diameter of the through-opening (31, 32a, 41, 51, 61), and the diameter of the tube material tapers on both sides of the thickened point (21a, 21b, 21c, 21e, 21f) and thus holds the filling body and/or the filling material at the thickened point (21a, 21b, 21c, 21e, 21f), or the object itself being provided at the thickened point in the tube and stretching the tube in such a way that the diameter of the tube material tapers on both sides of the thickened point and thus holds the object at the thickened point. characterized in that the holding and/or conveying system has at least one guide element which extends in the longitudinal orientation of the holding device (1, 1a, 1b, 1c, 1d, 1e, 10, 10a) and on and/or in which the at least one object (3, 3a, 3b, 3c, 4, 5, 7) is provided, the guide element being a tube which has an expandable diameter and has at least one thickened point (21a, 21b, 21c, 21d, 21e, 21f) which forms a counter-holder for the object (3, 3a, 3b, 3c, 4, 5), the object (3, 3a, 3b, 3c, 4, 5) having at least one through-opening (31, 41) or a channel through which the guide element is passed, the thickened point (21a, 21b, 21c, 21e, 21f) being arranged at the through-opening (31, 32a, 41) or in the channel, the thickened point (21a, 21b, 21c, 21e, 21f) being formed by at least one filling body provided in the tube and/or a quantity of filling material provided in the tube, the tube material being stretched at the thickened point (21a, 21b, 21c, 21d 21e, 21f) by the filling body and/or the filling material such that the outer diameter of the thickened point (21a, 21b, 21c, 21e, 21f) is greater than the inner diameter of the through-opening (31, 32a, 41, 51, 61), and the diameter of the tube material tapers on both sides of the thickened point (21a, 21b, 21c, 21e, 21f) and thus holds the filling body and/or the filling material at the thickened point (21a, 21b, 21c, 21e, 21f), or the object itself being provided at the thickened point in the tube and stretching the tube in such a way that the diameter of the tube material tapers on both sides of the thickened point and thus holds the object at the thickened point.