June Tailor T-Shirt Transformation Ruler, 15-1/2 by 15-1/2-Inch Turn treasured t-shirts into a memory quilt. 15.5&quot; x 15.5&quot; square acrylic ruler with inked alignment guides. Marking guides at 12.5&quot; and 10.5&quot; to mark youth and children's t-shirts. Made in the USA. View the video tutorial as directed on packaging.