CLOVER-Loop Pressing Bars. These Loop Pressing Bars are an invaluable tool in the sewing room. They can be used to neatly press seam allowances either open or to the side, to straighten seams when pressing, or to pull cords through fabric tubes. This package contains five pressing bars in various widths (1/4- 5/16- 1/2- 9/16- and 11/16 inches). Each one is made of polyamide and measures 12 inches long. Imported.