Tools for Regular Rulers:
Click Here for OVERVIEW
Guidelines Ruler(s) &
Scant ¼” Seam Allowance Tool & Point Trimner:
You can use 12" or 24" regular ruler you already have or the Guidelines Ruler shown in the animation.
The Chart above is included in the Seam Allowance Additions' 8-Page Booklet.
Download the 8-Page Booklet.