Features Professional Grade: Ideal for engineers and carpenters, suitable for wood, stone, and metal processing measurement, providing precise results for professional use. Durable Stainless Steel: Made of rust-proof and durable stainless steel material, ensuring safety and stability for long-term use. Adjustable Angle Measurement: Features an adjustable square head with a 0-300mm measuring range, allowing for accurate and versatile angle measurement. High-Precision Design: Double-sided ruler with millimeter and centimeter scale for easy and accurate reading, suitable for measurement, marking, and layout tasks. Elegant and Practical: Exquisite workmanship with a simple and elegant appearance, making it an important and reliable measuring tool for various applications. Ultimate Tool for Precision Measurement Engineers and carpenters, meet your new best friend. This stainless steel protractor combination square ruler is designed for wood, stone, and metal processing measurements. Its adjustable square head allows for accurate 0-300mm measurements and customizable angles, making it perfect for professional use. Package List 1 x Angle Ruler