6 1/2 Triangle Square Up Ruler by Quilt in a Day

Eleanor Burns Quilt in a Day 6.5" Triangle Square Up Ruler HST QST Half Quarter

12 1/2 Square Up Ruler by Quilt in a Day

9 1/2 Triangle Square Up Ruler by Quilt in a Day

12 1/2 Square Up Ruler by Quilt in a Day

6-1/2-Inch by 6-1/2-Inch Triangle Square up Ruler (2010)

Bloc Loc Half Square Triangle Multiple-Sized 6-1/2" Quilting Ruler w/ Grid Lines

Triangle in a Square Ruler by Quilt in a Day