Let Cyleibe Scale be your first choice for optimal accuracy on your next set of drawings. \nSolid construction and precise performance \n --that's exactly what you'll get.\n\nWhat this professional scale have? \n\u2714Accurate Markings \n\u2714Chamfered Edges\n\u2714Rust Proof\n\u27143 concave sides with 6 different scales\n\u2714Easy to Carry Bag\n\u2714Solid High-Grade Aluminum\nThe Cyleibe Scale is the perfect tool for any Architect, Draftsman, Engineer or Student. \n\nFeatures: \nHigh-grade anodized aluminum \nSolid core \nThe ruler measures 30cm in length and features 3 concave sides with 6 of the most commonly used scales: 1:20, 1:25, 1:50, 1:75, 1:100, 1:125 \nDurable and sleek black finish \nLaser-etched markings \nLightweight and perfectly balanced \nEasily readable measurements \n100% Satisfaction guaranteed or full money back!\n\u2714Built to last: Unlike engineering rulers with printed markings, our engineering scale is made of solid anodized aluminum. 100% laser etc!