to rotate or turn with the outer tube 316 fig4 and 5 illustrate the assembly 10 with portions cut away for clarity the lobes 317 surround the inner tubing 314 and both of the lobes reside within the outer tube 316 fig6 7 and 8 illustrate alternate views of the lobes 317 of the present invention fig9 is a detailed view of the double lobe attachment made up of two lobe halves 317 held together by clamps 312 and fasteners such as bolts 318 tightening the clamps onto the inner tubing not shown in fig6 through 9 the inner surface of the lobes 317 may optionally have linear grooves or roughened surfaces 319 to discourage or prevent slipping on the outer surface of the inner tube 314 fig5 shows one preferred arrangement with the mostly concentric inner tube 314 as the affected tube having two restrictive lobes 317 of some length that are attached by clamps or other means to the inner tube a diameter restriction 315 has a top guide 322 which provides a ramped surface installed on the inner surface of outer concentric tube 316 guide 322 on diameter restriction 315 ensure that lobes 317 on the inner string moves to either side of the restriction 315 for further vertical movement of the inner string a similar guide on the end of lobe 317 is also required to facilitate this desired movement the outer tube 316 can be free standing on the bottom and top or attached to a swivel not shown or some other device allowing rotation free or limited when the outer tube 316 is sufficiently.