Omnigrid 8 Inch Quarter Square Triangle Ruler

The Omnigrid 8 quarter square triangle ruler is used to create quarter-square triangles for finished quilt blocks up to 8; it has seam allowance calculations included in the measurements.
In general, Omnigrid triangle rulers are used to cut half-square and quarter-square triangles; seam allowances are included in the measurements, which are based on the finished size of the quilt block
Use with a rotary cutter or a straight-edge blade
The quarter square triangle ruler has the following standard Omnigrid features:
Edge markings for accurate measuring
Laser cut edges for smooth, deep cutting
Patented double-sight lines that show up on light and dark fabrics
Heavy-duty durable acrylic material
Left- and right-hand numbering and angle system