· Accurate Measuring Ruler, Many Functions' Combination

· Digital Protractor Equipped With Horizontal And Vertical Bubble Can Be Used As a Level Ruler To Help You Check And Calibrate.

· Designed With Two Easy-To-Read Ruler With High Accuracy And Clear Scale Provide You With Better Length Measurement And Line Drawing Experience, The Bright Yellow Paint Appearance Contrasts With The Black Scale For Better Readability Of The Value.