1.??Material??: Heat resistant iron ruler, made of high temperature resistant transparent resin. This is heat resistant and allows the steam of the iron to pass through. The unique non-slip surface keeps the fabric in place. 2.??Heat resistant??: Hot iron ruler, the heat resistance temperature is generally below 220 degrees, short-term extremely high temperatures can withstand 280 degrees. 3. ??Multifunctional??: The hot iron ruler patch has a round angle that is suitable for measuring special parts. There is also a right angle design that measures the horizontal and vertical dimensions of the fabric. 4. ??Easy to use??: Place the hot ruler in the middle of the fabric, fold the fabric over, you can clearly see the size of the ironed part. 5.??Widely used??: High temperature iron ruler for ironing, sewing, sewing, seam allowance, patchwork, measuring, drawing, cutting clothes or fabrics. An excellent tool for designers, model makers, tailors and tailors.