abut the bottom of the groove 13 in the surface 15 of the golf club head 11 the inventor has found that the preferred included angle is 90 u00b0 with each grooved surface 30 forming an included 45 u00b0 angle with the centerline 31 of the prong 12 the prongs 12 are positioned so that the edge 32 formed by the intersection of the ground surfaces 30 is parallel to the corresponding edge of every other prong of the cleaning device 10 the prongs 12 are also aligned so that the edges 32 are not parallel to the straight line defined by the points at which the prongs 12 intersect the surface 33 of the support structure 17 while it is only necessary that the edges 32 not be parallel to said defined straight line the inventor has found that the preferred embodiment of the invention is to align the edge 32 of each prong 12 so that it is perpendicular to said defined straight line referring now to fig1 illustrated therein is a golf club head 11 having a surface 15 in which are uniformly spaced parallel grooves 13 as mentioned previously it is not unusual for the grooves 13 to become imbedded with dirt sand or the like when the golf club is used the apparatus 10 is used by fitting the tips of the prongs 12 into the grooves 13 in the surface 15 of the golf club head 11 the apparatus 17 is then moved in the direction of the grooves 13 as the apparatus 10 is moved across the surface 15 of the golf club head 11 the tips of the prongs 12 will remain in.