Ruler size: 7" square
Use tool to quickly and accurately trim down pieced squares to exact measurements. Trim down units made with triangles like half square triangle squares, quarter square triangle squares or hourglass units and combinations of half square and quarter square triangle squares. Ruler has multiple diagonal markings to align unit seams lines and quickly locate the exact center of your pieced units. Achieve perfectly sewn units every time with high precision. 11 unit size options from 1" to 6" in .5" increments. For right and left handed use.