view of an embodiment of the internal bidirectional tubing plug see fig1 this embodiment is for use in wells that have a slight flowing gas condition which is unsafe to run open ended tubing in wells that when shut in do not build up enough pressure to require a snubbing unit to run the tubing with a blanking plug in the snubbed tubing wells that operators do not want to kill with a well fluid to run the tubing as known in the art gas pressure not shown acting below the piston 514 see fig2 pushes upward on the cross sectional area not shown of the half pistons 508 see detail a or the cross sectional area not shown of the quarter pistons 510 see detail b when used transferring the generated force of the gas not shown to a plurality of balls 504 which transfer the force not shown in the balls to the groove 506 of the body 500 preventing any upward flow of liquids of gases through this embodiment when the well is nippled up not shown and as known in the art fluids or gages not shown may be directed down the tubing not shown to sent the parts of this embodiment out the end of the tubing string not shown opening the well to production not shown referring now to fig2 fig2 is an isometric view of assembly device 600 fig2 detail a is a front sectional view of the assembly device 600 used to assemble an embodiment as described in fig2 referring now to fig2 fig2 is a front cross sectional view of an assembly device 600 see.