Use the Spacing Gauge Quilting Tool to achieve accurate spacing when quilting with rulers and templates. The Spacing Gauge Quilting Tool has four sides which include the following measurements: 1/8in, 1/4in, 1/2in, and 1in. This must-have quilting tool is a huge time saver! Simply slide in the Spacing Gauge Quilting Tool, set your ruler or template, and you are ready to sew.