Superior MaterialAdjustable Multifunctional Ruler Is Sturdy And Durable. The Ruler Is Made Of High Quality Stainless Steel And The Corner Bracket Is Made Of Zinc Alloy, Which Ensures That It Will Not Rust, Deform Or Break Easily High PrecisionThe Range Measuring Range Is 0-300Mm, Double Sided Ruler In Metric And Inch Graduations For Easy And Accurate Reading. At The Same Time, It Combines A Level Bubble, Accurately Measure Balance To Improve Work EfficiencyMultifunctional MeasurementThis Ruler Can Measure A Variety Of Data, Such As Right Angle, Angle Of 45, Length, Depth And Width. Come With A Built-In Scriber That Makes It Easy To Mark Without A Pen Adjustable DesignThe Spring-Loaded Screw And Efficient Clamping System Make It Easy To Remove And Install The Stainless Steel Ruler, And The Smooth Ruler Also Makes It Easier To Slip MeasurementWidely UsedThis Ruler Is Suitable For Measuring, Marking, Etc., To Help You Measure Accurately. It Is Widely Used In Home, Engineering Measurement, Housing Construction And Other Places