Quilters Select is proud to introduce you to their new Diameter Arc Machine Quilting Rulers. With the arc rulers, you can easily create clamshells, circles, scallops, orange peels, offset designs, and more. These 6mm acrylic quilting rulers are used with a high shank or longarm machines with a ruler foot attachment. As with all Quilters Select Rulers, these have a non-slip coating that prevents your ruler from slipping as you guide your fabric through the machine. Also included are new finger grip holds that enhance your ease of placement and movement. Choose from four rulers to create 1 , 1-1 2 , 2 , 2-1 2 , 3 , 4 , 5 , or 6 arcs.