The Nautilus Feather Tool Set is a set of 1/4 inch thick acrylic templates for creating 3" and 4" spiral designs. You can uses these to help you make baselines for many different borders, corners, and blocks. Simply draw or stitch a spiral baseline and then embellish the baseline spiral with feathers, spirals, leaves, or anything you can imagine. Whether you are quilting on a longarm, midarm, shortarm, or domestic machine or by hand, you can use the Nautilus Baseline tools to create designs that are perfect for your quilt.