Ideal for students, artists, and professionals, this 30cm ruler with sticker type calibration offers accurate measurements for various projects. The ruler's design ensures easy visibility and readability of measurements, making it a convenient tool for everyday use. Whether you're drawing straight lines, creating precise designs, or taking measurements, this ruler is a reliable companion. The sticker type calibration adds a practical touch, allowing for quick and efficient readings. Add this versatile ruler to your stationery collection for precise and efficient measuring tasks in school, the office, or at home.