Laser Etched Grooves : Our ruler's grooves are laser-etched for lasting clarity, resisting wear and tear over time. Easy-To-Read Scales : The high-visibility grooves enhance readability, ensuring accuracy in all your drafting endeavors. Triple-Sided Versatility : Three sides, each with distinct scales, provide the flexibility needed for diverse drafting challenges. Unleash your potential with our innovative triple-sided architectural scale ruler, designed to meet the rigorous standards of architects and engineers. The laser-etched grooves maintain their integrity against the test of time, while the high-visibility design ensures ease of use under various lighting conditions. This versatile tool, 30cm in length, supports a wide range of scales, making it an indispensable asset for tackling complex projects with precision and style. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.