Premium Material: Our straight rulers are made of high-quality plastic with smooth edges and angles to help prevent finger scratches. Lightweight, durable, and resistant to breaking. Transparent Ruler: Measures 5.9 inches (15 cm). The transparent design allows clear visibility of objects, text, or numbers underneath. Compact size makes it easy to carry and store in a pencil case or bag. 2-Sided Measuring Ruler: Features precise centimeter scales with standard numbering on one side and larger numbers on the other for easier reading and accurate measurement. Bright Color: Each ruler has a two-tone design with a transparent half and a colored half. Reusable and resistant to deformation or damage. Package includes 3 plastic rulers; color selection not available. Wide Application: Ideal school supply for students and children. Suitable for math education, classroom use, school, office, and home. Also great for artists, designers, machinists, architects, engineers, and woodworking projects.