The drafting rolling ruler is for creating detailed and accurate drawings. Its rolling mechanism allows for smooth movement, making it easy to draw long, without interruption. This tool is essential for anyone involved in technical drawing, from students to professionals, reliability and precision in every use. Features -Color:Transparent -Material:Plastic -Size:31.00X6.50X2.00cm/12.18X2.55X0.79in -Size:16.50X6.50X2.00cm/6.48X2.55X0.79in -Accurate drawing: allows for precise drawing of angles, circles, arcs, and parallel lines, ensuring high accuracy in all projects. -Versatile usage: suitable for a variety of settings including home, office, school, and professional environments. -Professional tool: ideal for engineers, draftsmen, illustrators, and fashion designers, a reliable tool for detailed work. -Portable and lightweight: made of transparent plastic, it is easy to carry and use, making it for tasks. -Educational benefits: encourages students to develop their manual skills and creativity, making learning more engaging. Package list: 1 X 30cm Parallel Ruler 1 X 15cm Parallel Ruler