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.