For the large existing base of block type sets, {HEAD ~ the invention} provides a specially dimensioned rod and connector set, compatible with existing toy construction blocks, such that the complex hybrid structures described above can also be executed utilizing {TAIL ~ existing block elements} of standard dimensions 
For the large existing base of block type sets , { HEAD ~ the invention } provides a specially dimensioned rod and connector set , compatible with existing toy construction blocks , such that the complex hybrid structures described above can also be executed utilizing { TAIL ~ existing block elements } of standard dimensions
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