CM Designs Add-A-Quarter 18-inch Yellow Ruler, SKU CMD18
- CM Designs Add-A-Quarter Rulers automatically add the customary 1/4 inch seam allowance to any straight angle, and provide a straight edge for your rotary cutter. It's fast, easy, you can cut multiple layers, and it is made of recycled plastic! Marked in 1/8 inch increments along the length. 18 inch long.