Hot Ironing Ruler

Remember when rulers for sewing and quilting were all made of ordinary rigid plastic or simple fabric materials? 
None of them could meet the rising demand of DIY hot ironing projects, as transparent plastic rulers were not heat resistant, while on the other hand, fabric rulers could tolerate the heat of a steam ironing press, but they were not see-through tools. To solve this knotty problem, Kearing created an entirely new type of ruler: a material that could equal the resilience of an astronaut’s helmet and incredibly heat-resistant. From this unprecedented idea, Kearing’s resin plastic Hot Ironing Ruler rapidly encountered widespread success in the following years. 
Today Kearing owns exclusive patents for this tool, including its raw material, technology, design, and package style.