Roller blind arrangement with winding shaft hollow tube

A roller blind arrangement for a motor vehicle, having a roller blind web and a winding shaft onto which the roller blind web can be wound and from which the roller blind web can be unwound and which has a flexible hollow tube arrangement penetrated by a bearing beam attached to the vehicle. The hollow tube arrangement may have a hollow tube element which, viewed in the axial direction, may have multiple flexible portions interrupted by at least one stabilizing portion having a greater torsional strength than the flexible portions.