FEATURES Universal Angle Protractor Material: high quality stainless steel; smooth, scratch-resistant, wear-resistant, rust-resistant; Protractor marking range: 0-180 degrees, scale: 10 cm; markings and numbers are clear and easy to read. Adjustable protractor arm locks to the desired position with knurled thumb nut for quick and easy angle identification Suitable for students, mechanics, carpenters, vehicle maintenance and repair, construction. Product Name: Stainless Steel Angle Ruler Product material: stainless steel Product Size: As shown Colour: Silver Packing list (available after purchasing one product) Angle ruler *1 Please understand: 1.Due to the long shipping time, the item may be damaged during shipping. If the item is damaged, please leave us a message through the official website immediately and then post a comment, I will solve the problem for you. 2. Due to manual measurement, the size may have 1-3cm error. 3. Colour may vary by monitor.