High Durability: Made of high quality stainless steel, anti-rust and anti-corrosion and can withstand high pressure for long term use. Multi-angle and double scale measurement: The folding ruler can be moved to several angles to obtain the measurement of multi-shaped objects. And it has dual scale, which are metric and inch to achieve dual measurement scale. Easy to use: place the ruler in the work area, adjust the angle, tighten the knob, you can start measuring, drawing and other works, easy to use and carry. And tighten the knob, the ruler will stabilize in line and not move. It is safe and durable. Wide Application: Can be used to create patterns for tile, wood, glass, etc., and can also be used for engineer drawing and measurement, with a wide range of uses. 100% Satisfied Service: Sincerely hope that our products will give you a good experience and some help. Do not hesitate to contact us, we will do our best to help you.