Add-A-Quarter PLUS 6-12 Combo. Add-A-Quarter Plus Combo 6in & 12in Rulers with its specially designed lip automatically adds the customary 1/4in seam allowance to any angle and provides a straight edge for your rotary cutter. The tapered edge is used as a straight edge for folding back the foundation.... - Add-A-Quarter PLUS 6-12 Combo. |