Feature: 1. Dual Function Design: The adjustable angle protractor features an etched measuring ruler and an adjustable angle measuring tool, combining both angle and length measurements in one device. The ruler allows for accurate length measurement within a range of 0-10cm, while the angle protractor can accurately measure angles from 0-180 degrees. 2. Adjustable Arms: The stainless steel angle protractor is equipped with adjustable wings nuts that can be tightened to fix the angles in place, enabling easy identification and reading of angle measurements. This feature allows for accurate angle setting and measurement, suitable for various basic work and study demands. 3. Multifunctional: This angle measure tool is erosion resistant, rugged, and deformation resistant, ensuring long lasting quality. It is ideal for a wide range of applications including engineering, angle measurement, student drafting, architectural design, and length measurement, making it a useful tool for craftsmen, designers, artists, and engineers. 4. Accurate Angle Measurement: The stainless steel protractor's adjustable arms and clear angle markings provide accurate angle measurements for tasks such as drawing inclined planes, radial lines, and marking angles. Its excellent construction and accurate measurements make it a reliable tool for various projects and applications. 5. Convenient And User Friendly: The angle finder ruler's ergonomic design, adjustable arms, and easy to use functionality make it an essential tool for professionals and enthusiasts alike. Whether for technical drawings, artistic projects, or handcraft tasks, this versatile tool offers accuracy, durability, and convenience in angle and length measurements. Specification: Item Type: Angle Protractor Material: Stainless Steel Measurement Range: 0-180° Straight Ruler Range: Approx. 0-10cm / 0-4in. Package List: 1 x Angle Protractor Note: There is an error in size.