Unique Bargains PET Plastic Folding Film Flexible Ruler with R Angle and Width Lines 10cm / 3.94 inch

The flexible ruler is made of PET plastic, which is lightweight and convenient to use. The smooth design protects your hands when using it. With high-contrast markings, the film ruler ensures that every line and number can be read easily and accurately. The film ruler adopts R-angle design for measuring the radius of fillets. Different sizes of line widths can better measure the thickness of the lines. To obtain accurate readings, the film ruler needs to be used with a magnifying glass. It is very suitable for use in factories, research institutions, metrology rooms, and workshops. It can be used to measure the area of various products, accurately detect and calibrate various measuring instruments, measure the reduction rate of photo printing films, and detect the size of optical projection images.