Westalee's Spin-E-Feather Template Set is the ideal solution for creating intricate designs in your quilt tops. This four-piece set includes a 3-1/2", 4-1/2", 5-1/2", and 7-1/2" template (finished sizes). Each ruler has a unique key gate that allows you to place the hopping foot inside the template and close the opening. This prevents the template from expanding as you stitch and does not leave bumps in the stitching when you quilt past the opening. The Spin-e-Fex Feather Templates require a 1/2" ruler foot (not included). Please note that these acrylic templates are specific to the type of shank your machine uses: low shank, high shank, or longarm. Don't hesitate to get in touch with us at (888) 824-1192 if you have any questions or concerns, or check out this handy Ruler Foot & Template Size Guide here.