360 Degree 10cm School Transparent Plastic Protractor Ruler. Introducing our 360 Degree 10cm School Transparent Plastic Protractor Ruler, an essential tool for precise angle measurement and drafting tasks in classrooms and beyond. Crafted from durable and transparent plastic, this protractor ruler provides clarity and accuracy, allowing you to easily read and measure angles up to 360 degrees. With a compact size of 10cm, it's perfect for students and professionals alike, fitting neatly into pencil cases or desk drawers. Whether you're studying geometry, creating technical drawings, or working on craft projects, this transparent plastic protractor ruler is a versatile and reliable tool that ensures precise measurements every time.