Perfect Half Square Triangle Ruler
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The ultimate tool for creating half-square triangle blocks! The Perfect Half Square Triangle Ruler is made of clear acrylic, has printed guides for easy viewing, and step-by-step instructions. To use the template simply stitch, line up the template according to block size, cut with your rotary cutter, and press. Mark stitching lines, cut sewn block in half and square up - fast and easy with just one ruler.