High-quality materials: Made of high-quality material, it is sturdy and wear-resistant, can be used for a long time. The measuring range of the ruler is 30 cm. The width of the ruler is 3cm and the thickness is 0.2cm. The size is 31 x 3 x 0.2 cm. Double Sided Scale: This scale has inch and centimeter calibration with centimeter scales on one side and inch scales on the other side . Whether drawing or measuring, in most cases it is flexible. With a fixed end, you can easily draw horizontal straight lines. Easy to calibrate: This ruler is made of transparent plastic. You can see the underlined notes with which you can easily draw and check the measured length. The top of the ruler has a high quality plastic T-head for easy calibration. Transparent design: made of transparent plastic. You can see underlined notes to easily draw columns or check the layout of your documents. Compared with the normal ruler, the T-shaped ruler has a high quality plastic head scale for easy calibration. Practical tools: The transparent ruler with black marking is suitable for engineers, architects, students, draftsmen, artists, etc She is a good assistant for your work and study. Features: - This ruler has inch and centimeter calibrations that allow for flexible use in most situations. - This plastic ruler set is made of high quality plastic, which is non-toxic and tasteless. - With a durable ruler, you dont need to buy a ruler in a short time. - The T-ruler is made of clear plastic, so underlined comments are easily recognizable. - The transparent ruler with black marks is suitable for engineers, architects, students, draftsmen, artists, etc. Specification: Material: Plastic Size: 30 * 2.5 * 0.2 cm / 11.8 * 1 * 0.07 inch Color: Transparent Scope of delivery: 2 * square T-ruler