fiber resin ratio but are of different thicknesses to provide different bending moduluses and therefore different impact characteristics in fig4 the walls 30 32 are illustrated as being of plastic or fiberglass and in fig5 the walls 40 42 are illustrated as being of metal the core portions 34 44 may be of wood as illustrated or plastic the frame portion 6 may be of tubular configuration including as illustrated in fig6 and 7 first walls 50 60 and second walls 52 62 interconnected by side walls 56 66 as in the other embodiments a core material 54 64 may be used so that a user may know which of the two sides is in a hitting attitude indicia are provided to facilitate ready perception by the user as to the orientation of the hitting faces referring again to fig1 it will be seen that the grip portion may be provided with a roughened portion 70 by which the user may tell by 34 feel 34 which side or hitting surface is forward the roughened portion 70 is disposed on one side only of the grip portion so that the difference between the smoother surface on one side and the roughened portion on the other side will be readily perceptible alternatively the grip portion 6 may be provided with a protuberance 72 or bead fig8 or a recess or perforation 74 fig9 on one side of the grip portion or a protuberance on one side and a recess on the other side in still another embodiment the frame portion 6 may be color coded so that the user may perceive visually which side is in hitting position referring to fig1 it will be seen that the first and second walls 10 12 and the core.