A unique and original design by Jen Hogg - a set of circles to add or subtract any amount from any shape of sewing pattern. An instant best seller for Jen, these are frequently described by customers as "genius"! Check out the reviews on Etsy/Jenerates. Metric set: 0.5cm to 3cm, Inch set: 1/4" to 1". If you need more, just draw one line then use that as your guide to add another - there's no upper limit. Every size has two center hole options: small for a pencil, large for a felt pen / fabric pen, for use on paper or on fabric. Perfect for adding seam allowances, removing seam allowances, drafting facings and deep hems, marking the stitching line, drafting echo quilting lines and pad stitching guides, and more. Check out the reviews on Etsy/Jenerates. Made in Scotland from FSC approved cherry wood veneer. Packaged in a hand-stamped aluminium tin, without any plastic.