Just attach the S (Purple), H (Green) or Q (Red) Addition to the edge of your Guidelines Ruler,
and the exact seam allowance for Squares, Half Square Triangles or Quarter Square Triangles will be added.
But what they don't tell is those numbers are not exactly right.
Here's why:
This is why you have to make triangles extra big
and take extra time to trim them.
Have you ever noticed that your triangles still don't look right after trimming them?
Here's a new way to add exact amount of seam allowance:
You'll be able to make beautiful triangles every time without wasting any time.
Seam Allowance Additions work with Guidelines Rulers only.
If you want to add accurate seam allowances to your regular acrylic rulers, use Quilt Ruler Additions.
Guidelines Ruler:
Non-Slip, Un-nickable, Unbreakable, Self-Aligning Ruler.
Quilting Ruler with Adjustable Fabric Guide that self-aligns to the fabric's edge:
Made of Polycarbonate,
the Guidelines Ruler is 25 times stronger than acrylic rulers
and comes with a lifetime replacement guarantee.
No nicking the edge of the Guidelines Ruler's edge
with a rotary cutter's blade or No Chipping its corners guaranteed.