Abstract: An ostomy bag closure organization includes a polymeric block formed with an elongate slit positioned medially of the block parallel to spaced parallel sides of the block with spaced arcuate recesses positioned within a forward and end surface of the block for receiving first and second resilient bands in a parallel relationship in a first position and in a crossed relationship in a second position to bias the bifurcated block in a secure position relative to an associated bag inserted and wound about the block. The resilient bands are secured within respective slits directed interiorly of the block at intersections of the side walls and end wall of the block.