An occluding system is provided that can include a first occluding device (e.g., secondary occluder) and a second occluding device (e.g., primary occluder). Providing two devices can better promote effective occlusion within the body lumen and facilitate advantageous occlusion stages, such as initial and long-term occlusion stages. In various embodiments, the two occluding devices are in operative communication with one another, such that the second occluding device is adapted to couple with or slide along a tail portion of the first occluding device.
