Wing Clipper quilting tool, trim down tool for Flying Geese Units Item # DT07 Ruler size - 5  x 10 Step by step illustrated instructions Unit sizes available - 10 size options from  x 1 finished units to 5 x 10 finished units Note all sizes on this ruler are based on heights that finish to  or whole inch. Fine lines for higher accuracy plus a chart for easy conversions of other patterns and designs