Features: Experience precise measurements with our 30cm Colorful Clear Ruler, crafted from plastics for durability and clarity. These math measuring ruler features clear designs that allows for easy reading of measurements, available in four different color to cater to different drawing needs. Very suitable for students, teachers, engineers, and craft enthusiasts, these math measuting ruler meets the measurement need of both learning and professional environment. Widely use for in school classroom, office drafting, and home crafting project, ensuring versatility across various setting. Light in weight and portable, these drawing ruler is designed to be resistant to breaking, with clear, easy to read marking for accurate result. Specifications: Component: Plastics Color: Blue; Green; Yellow; White; Pinkness; Size: Approximately. 30.8cm/12.13in Weight: Approximately. 85g Package Includes: 4Pieces Colorful Clear Ruler note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color