inner diameter of the shaped recess 510 of holder 500 is increased likewise loosening the tightening mechanism 570 decreases the diameter alternatively a holder 500 of fig4 is fastened to the head portion 240 of the golf club 200 while numerous fastening means can be used by one of ordinary skill in the art it is preferred that holder 500 is fastened through placing a mechanism 395 through a drilled portion within the head portion 240 which connects to a bore through 365 located at the back portion 540 of the head portion 240 once holder 500 is fastened it is properly adjusted to select the correct inner diameter of the shaped recess 510 this is accomplished through pulling and tightening or in the alternative loosing and releasing multiple cable strings 560 within the outer and inner housings 520 and 530 of holder 500 once these strings are tightened they are secured via a tightening mechanism 570 proximate to the back portion 540 of holder 500 in addition the shape and dimension of holder 500 can be further calibrated through moving of the mechanism 395 either clockwise or counter clockwise to alter the shaped recess 510 as further shown in fig5 the apparatus 100 that connects holder 500 with the head portion 240 is a mechanism 395 as previously discussed the mechanism 395 can be placed through a drilled through portion of the head portion 240 or into a predetermined aperture found within a location of portion 240 one end of the mechanism 395 can be inserted into aperture or bore through 365 located within the back portion 540 of holder 500 mechanism 395 may act in concert with tightening mechanism 570 to provide for an ability to adjust the diameter of.