Add A Quarter Plus 12in.

12 Inch Add-A-Quarter Plus in yellow, perfect for paper piecing; the edge can be placed exactly on the paper and cut 1/4 inch with the rotary cutter. The beveled side makes it easy to fold the paper over.
The difference from the other versions of the Add-A-Quarter rulers is the tapered side. With this side the paper can be folded very tightly.
The Add-A-Quarter Ruler makes foundation piecing faster and the end result more attractive.