Sew Kind of Wonderful SKW50570 Qcr Ruler Quick Curve Ruler Sew Kind Of Wonderful ruler quick curve qtr. Sew Kind Of Wonderful ruler just the right tool for the job Quick curve qtr.- clear Acrylic template measures 12x 7with printed curves and inch markings in black Use this template, with its open section, for easily cutting gentle curves with a rotary cutter or as a Basic square up ruler