Material: Made of premium acrylic sheet, high hardness and long service life. Function: Designed to draw lines bearing line or course, the degree or amount of bearing line degree course line. Precise Scale: The scale is engraved, accurate and easy to see. A good accessory for drawing and measurement Good Transparency: Navigation Parallel Ruler has good transparency and does not obscure too much information. Easy to Draw: Two hands each holding a ruler of David, alternately moved in parallel. Sturdy links provide the right amount of tension for drawing a line parallel to another line or reference point. Material: acrylic fiber Color as shown Package Contents: 1 pcs Parallel Ruler Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''t hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it!