Rulers help create a perfect straight line whether it be in drawing, sketching, sewing or even ironing! Fold⌠Iron⌌And Sew Precise Mitered Corners With ZERO Measurements! OurMITERED CORNER RULERisincredibly durablemade of a thick translucent resin material that can withstand extreme temperature up to280-degrees.Making this heat-resistant ironing ruler ideal forlonger heat exposure, will not melt or deform. Simplyfoldthe cloth,alignit to your desired angle, andpress itwith the iron to smoothly sew hems in no time. Round R-angleis practically designed for measuring special seams and parts for a nice arch or curve side Evenly measures lines and diagonal angle lines to allow sewing and pressing hems faster, precise, and easier! Suitable for various sewing and hemming tasksas you can use it with either dry or steam irons! ThisMitered Corner Ruleris especially designed forironing, sewing, seam allowances, patchwork, measuring, drawing, cutting into clothing or fabric. A great tool for designers, patterns, tailors, and tailors. Order yoursTODAY.