Mr. McGroovy's Box Rivets are inexpensive, reusable plastic connectors that make building fantastic cardboard creations quick & simple. The Single-Wall Kit contains 200 rivets to connect 3/8" thickness of cardboard.

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Mr. McGroovy's Box Rivets are inexpensive, reusable plastic connectors that make building fantastic cardboard creations quick & simple. The Single-Wall Kit contains 200 rivets to connect 3/8" thickness of cardboard.

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