Geometry tools are constructed of quality stainless steel, lightweight and durable, easy and handy to storage.
☆ Features: stainless steel, anti-corrosion and anti-rust, clear lines and accurate readings.
☆ Heavy chassis: stand upright without tilting, simple and convenient measurement.
☆ The surface is smooth and delicate, there are no extra traces, and each right angle can be easily measured.
☆ Using the vernier reading principle, the reading is made by the difference between the main ruler and the vernier scale.
Glhkkp Stainless Steel Protractor Practical Protractor Multifunction Measuring Protractor Measuring Tool 0-320 Degrees Color Silver Size 0-320° Office Products 0-320° B083NXVZ6Q