[High Quality Material]: The Carpenter Ruler Is Made Of Aluminum Alloy, With Matte Black Surface, Which Is Anti-Glare. Corrosion, Durable And Difficult To Damage. Disassemble.[One Machine With Multiple Functions]: The Triangular Ruler Can Be Used As A Protractor, Tabulator, Saw Line, Plotter Line, Square. Three Meters, Square Of Frame And Ruler.[High Accuracy]: The Large And Fast Carpenter'S Square Ruler Has Both Metric And Inch Sizes. The Scale Is Clear And Precise. The Scale Goes From 0 &Deg; To 90&Deg;. It Is Printed With An Inch Scale And A Common Conversion Table For Easy Measuring And Reading.[Easy To Read. Use]: Suitable Size For Metric Carpenter Grid: 30X30X43Cm / 12.0X12.0X17.0 Inch, Medium Size, Clear Size, Easy To Clean. Draw.[Application]: The Square Carpenter 1Pcsx12 Aluminum Can Meet The Needs Of Hobbyists, Home Builders, Fabricators, Diyers, Artists And Woodworkers.