20 individually by releasing the tube housing 20 from the width adjustment mechanism 60 with the width adjustment screw 63 this is advantageous for isolating a muscle group during exercise once the present invention 10 is adjusted to the specifications of the user it is ready for use as an exercise aid one example includes using the present invention 10 for abdominal exercises performed while sitting in a chair lying on a half ball or lying on a mat first the user will grasp the present invention 10 with the grips 70 and place the plungers 41 and pads 43 against their chest and legs next the user will bring their chest towards their legs exerting force upon the compression mechanisms 30 the compression mechanisms 30 will provide resistance to this motion by returning a force commensurate with the resistance level of the springs 31 while this is an exemplary exercise the adjustability and customization of the present invention 10 will provide many useful exercises and workouts for the user the above detailed description of the embodiments of the invention is not intended to be exhaustive or to limit the invention to the precise form disclosed above or to the particular field of usage mentioned in this disclosure while specific embodiments of and examples for the invention are described above for illustrative purposes various equivalent modifications are possible within the scope of the invention as those skilled in the relevant art will.