2 Plastic Ruler Set: This plastic ruler set is made of high quality BPA-free plastic material, non-toxic and tasteless. Reusable and ensures a long service life. The measuring range of the ruler is 12 inches / 30 cm; the ruler width is 3 cm and the thickness is 0.2 cm; the size: 31x 3 x 0.2 cm. Double Side Scale: This scale has inches and centimeters calibration, with centimeter scales on one side and inch scales on the other. Whether drawing or measuring, it is flexible in most cases. A fixed end allows you to easily draw horizontal straight lines. Easy to Calibrate: This ruler set is made of transparent plastic, you can see the underlined notes, which is convenient for you to draw and check the measured length. The top of the ruler has a high-quality T-shaped plastic head for easy calibration. A Convenient Hanging Hole: The tail of this T-shaped ruler has a hole for easy hanging, you can find a hook or nail directly after use. It occupies no space and is easy to use due to its obvious location. The material is lightweight and does not add extra weight to your hook. Practical Tools: Transparent ruler with black mark is suitable for engineers, architects, students, draftsmen, artists, etc. It will be a good assistant for your work and study. With a durable ruler, you dont need to buy a ruler again in a short time. Specification: Pack contains two T-square ruler Size of each piece: 31 cm x 3 cm x 0.2 cm Color: Transparent Material: Plastic Package Including 2x T-Square