Interconnecting toy block arrangement

An improved interconnecting toy block arrangement comprising in combination:

• a semi-flexible body means having a first predetermined flexibility and having a plurality of wall members unitarily fabricated defining a body cavity;
• a first wall of said plurality of wall members having first internal walls defining a first aperture therethrough, and a second wall of said plurality of wall members having second internal walls defining a second aperture therethrough aligned with said first aperture.
• a semi rigid first female coupler means discrete from said semi-rigid body means having a second predetermined flexibility less than said first predetermined flexibility and comprising a first female coupler member and a second female coupler member and each of said first and second female coupler members having:
• an outer end;
• an inner end spaced a first predetermined distance from said outer end and positionable within said body cavity;
• internal wall surfaces defining a male coupler receiving aperture extending from said outer end toward said inner end thereof;
• external wall surfaces;
• a collar on said outer end having an inner edge at said internal wall surfaces and an outer edge spaced from said external wall surfaces;
• a plurality of internal ridges on said internal wall surfaces extending from said outer end toward said inner end and a plurality of external ridges on said external wall surfaces extending from said outer end toward said inner end;
• relief means in regions adjacent said outer end for contributing to the flexibility of said female coupler member adjacent said outer end thereof having walls defining a plurality of slots extending from said internal wall surfaces to said external wall surfaces and extending into said collar from said inner edge toward said outer edge;
• and
• said inner end having an interlocking means comprising one of an insertion portion and walls defining an insertion portion receiving aperture;
• said inner end of said first female coupler member having said insertion portion and said inner end of said second female coupler member having said walls defining said insertion portion receiving aperture, and said insertion portion of said first female coupler member positioned within said insertion portion receiving aperture of said second female coupler member for interlocking said first female coupler member to said second female coupler member;
• and
• retention means for retaining said collar of said first female coupler member at said first wall of said plurality of wall members and said collar of said second female coupler member at said second wall of said plurality of wall members.