Features: brand new and high quality High Quality Material: Made of high quality aluminum alloy, stable, firm and durable. Application: Good performance, convenient and practical, suitable for home and professional use. High Accuracy: It is a good choice for most projects like woodworking, crown molding and daily use. Wide Application: Woodworking construction ruler is suitable for three dimensional items: Square and Tubular, Hollow and Solid, aluminum Alloy, Wood, Stainless steel, Marble, etc. Lightweight Size: Portable and small size, easy to store and carry, bring you convenience. Specifications: Measuring Range: 0-7cm. Measurement Accuracy: Mm. Scope of Application: Woodworking Aids. Material: Aluminum Alloy Color: Black Product Dimension: approx. 74x104x17mm/2.91x4.09x0.67inches Net Weight: 100g/0.22lbs Package Includes: 1x Carpenter's Triangular Ruler note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.