Triangle Ruler - 7 inch inch square: 18.5cm x 18.5cm x 25.5cm; 12 inch inch triangle: 30.5cm x 30.5cm x 43cm; Lightweight, compact, as convenient to carry as storage, making DIY easier.High-Quality Material - The rafter square is made of precision and durable aluminum alloy, the rafter square is made of high-quality aluminum alloy, which has high hardness, strong toughness, and is not easy to rust. - Square finish with low and protective powder coating. Square gives you the extra-standard precision you need. It features permanent deep markings and white graduations for maximum readability in any lighting condition.EASY TO READ - The markers bring a clear high-precision scale, and also allow easy conversion of angles and lengths. The thick edge can be sawed directly against the square for -sections or miter cuts with etched protractor scales. For defining and marking angled and square cuts in panels.MULTI-FUNCTIONAL - The square ruler can be used as a protractor, carpenter& 39;s compass, square ruler and frame ruler. The horizontal base is convenient for marking, and practical. Perfect for all construction and remodeling projects.Colour:blackMaterial:aluminum alloySize:30.5 x 43cmPackage Contents:1 x 12 inch triangle ruler1 x 7 inch triangle rulerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.