Step by step instructions for making square triangle, hourglass, and combination units. Instructions and illustrations for left handed trimming and cutting. Charts for easy conversion of other pattern instructions. Item # DT07 Ruler size - 5 ½” x 10 ½” Step by step illustrated instructions Unit sizes available - 10 size options from ½” x 1” finished units to 5” x 10” finished units Note all sizes on this ruler are based on heights that finish to ½” or whole inch. Fine lines for higher accuracy plus a chart for easy conversions of other patterns and designs