Features Premium Stainless Steel Construction - Crafted from durable stainless steel, this protractor is resistant to rust and wear, ensuring longevity for all your woodworking projects High Precision Laser Engraved Scales - Featuring clear, high-contrast markings, the engraved scales provide accurate measurements that won’t fade over time, enhancing your precision Ergonomic Design for Comfort - With polished edges and corners, this ruler is designed for safety and comfort, allowing for easy handling without the risk of injury Versatile Rotary Angle Finder - The innovative 180-degree rotating design allows for flexible use, making it ideal for various woodworking tasks and precise angle measurements Convenient Screw Fixed Slider - Equipped with a secure slider that locks in place, this tool enables accurate scribing and marking, enhancing your overall efficiency while working Features: 1、1. Stainl steel forged ruler body, anti-, no . 2、The edges and corners of the ruler have been carefully polished, which will not hurt hands. 3、3. High precision laser engraved scales, clear, wear resisting and no fading. 4、4. Manufactured through multiple workmanship, the ruler is sturdy and in use. 5、5. Rotatable straight ruler design makes the ruler more flexible to use. Specification: Features: 1. Stainl steel forged ruler body, anti-, no . 2. The edges and corners of the ruler have been carefully polished, which will not hurt hands. 3. High precision laser engraved scales, clear, wear resisting and no fading. 4. Manufactured through multiple workmanship, the ruler is sturdy and in use. 5. Rotatable straight ruler design makes the ruler more flexible to use. Specification: Material: Stainl steel Treatment: Chrome plating Measuring Accuracy: 1mm/1° Optional Size: -#1: Straight Ruler Scale: 100mm, Semicircle Diameter: 90mm -#2: Straight Ruler Scale: 150mm, Semicircle Diameter: 150mm -#3: Straight Ruler Scale: 300mm, Semicircle Diameter: 230mm Package Weight: 75-343g Package List: 1 * Rotary Protractor Package List