4 first core 20 is defined by the plurality of first cell members 22 located or positioned adjacent each to the other in contiguous manner to provide a lightweight and deflectable overall element which would absorb impact loading each of first cell members 22 includes opposing first cell member top and bottom members 34 and 36 as is seen in fig4 and further includes opposing first cell member side members 38 with each of the side members 38 forming a side member of a next consecutively spaced first cell member 22 as is seen in fig2 4 in general first core 20 may be formed in a one piece formation defining an overall first core top member 40 and a first core bottom member 42 first core 20 may be formed of a plastic composition and in particular may be formed of a closed cell plastic composition such as polypropylene in this manner first core 20 may be molded in one piece formation to provide a unitarily formed first core 20 as can be seen in fig2 4 first core through passages 32 in cross section may be formed in a rectangular contour and extend in longitudinal direction 24 in this manner first core.