Premium Material: These folding helix rulers are crafted from high-quality plastic, ensuring they are durable, shatterproof, and lightweight. They can be easily folded and stored in your pencil case or bag, saving space without compromising functionality. Convenient Size: The transparent rulers have a total length of 30 cm (12 inches) when unfolded, and fold neatly to 15 cm (6 inches). This makes them long enough for daily measurements while remaining compact and easy to carry in a pencil case or bag. Clear and Easy-to-Read Scale: Designed with a clear centimeter scale, these folding rulers make measuring and reading the scale a breeze. The junction features a protractor that can measure up to 180°, adding versatility to your measurements. Versatile Functionality: These foldable rulers meet your diverse measurement needs. They can be used for measuring straight-line distances and angles, and each scale has a small hole for easy marking, making them ideal for precise tasks. Wide Range of Applications: Suitable for both children and adults, these clear rulers are perfect for everyday use at home, school, the library, the study room, or the office. They are ideal for drawing lines or measuring a variety of objects with flexibility., Manufacturer: Czdtq