A transparent ruler allows you to see your project under the ruler for accurate positioning and marking.
Use centering holes in center of ruler to evenly space buttonholes, tucks and pleats.
To enlarge patterns on grids, draw a grid to match scale given with pattern.
Establishing Parallel or Perpendicular Lines to Redesign Patterns and Add Seam Allowances:
Designer’s Tip: Use the hard outer edge and flexible feature of the ruler to measure soft curves and create new curved lines when adjusting and altering patterns.