Designed especially for quilters, this ruler set includes one large square ruler and one medium-sized ruler to satisfy all of your block-cutting needs. Both rulers feature a highlighted seam allowance and easy-to-read grid lines that make cutting perfect squares of fabric easier than ever before.Details:Orange and clear with black lines and text12.5" x 12.5" (31.75cm x 31.75cm) large ruler size6.6" x 6.6" (16.76cm x 16.76cm) medium ruler size2 square rulersIncludes 30-, 45- and 60-degree line indicatorsIncludes optional non-slip vinyl feetAcrylic