Feature:1. Convenient and Comprehensive: Our Five Line Staff and Painting Staff Ruler is designed to meet all your musical notation needs. It covers a wide range of commonly used music symbols, including serial numbers, key signatures, rhythms, clefs, accidentals, and various other lines. With this ruler, you will have everything you need to create professional-looking sheet music.2. Premium Materials: Crafted with 1mm thick PP material, our ruler offers excellent durability and flexibility. It is lightweight and easy to handle, making it perfect for musicians on the go. The high transparency and silk-screen printing technology ensure clear and accurate markings, allowing for effortless use and precise results.3. Dual Scales for Versatility: Featuring both millimeter and inch markings along the edges, our ruler serves not only as a music notation tool but also as a handy measuring instrument for everyday use. Whether you need to measure small distances or make simple calculations, our ruler has got you covered.4. Ideal for Composers and Music Enthusiasts: Our Composer Template is an essential tool for composers, music teachers, students, and anyone passionate about music. It provides a convenient and efficient way to sketch out musical ideas, transpose melodies, or experiment with different harmonies.5. Perfect for Musicians: Our Drawing Sheet Music Ruler is not only practical but also aesthetically pleasing. Its sleek design combined with its functionality makes it a must-have tool for any music lover. Give the gift of inspiration and creativity with our innovative and versatile music notation ruler.Specification:Product Material: PPProduct Size: 19 * 10.4cm/7.5 * 4.1inchProduct Thickness: 1mmPackage List:1 * Composer Template