ZUTTER-Bind-It-All Space Bar. Installing this space bar will adjust perforations closer to the edge of the paper. Perforated holes closer to the edge will allow proper performance when using smaller diameter Owire bindings (3/8 and 1/2 inch). This package contains one space bar. An essential upgrade for Bind-It-All V2.0. Imported. 1 Pack of 1 Piece