June Tailor, Perfect Half Square & Quarter Square Triangles Ruler (12.5" x 10.5") (not in pricelist)

The all-in-one slotted tool to create perfect half and quarter-square triangles. For half-square triangle blocks: MARK stitching lines; then sew. CUT stitched squares in half; then press open. SQUARE up blocks to size. For quarter-square triangle blocks place two half-square triangle blocks right sides together.