Feature: 1. Via precision manufacturing, with quality assurance and accurate scale, such a ruler is easy to operate. 2. As for its function, it can be used as the auxiliary marking tool for woodworking. 3. Such kind of auxiliary marking tool is suitable for carpentry and DIY woodworking enthusiasts. 4. No extral step is required when you use such ruler and the measuring operation is simple. 5. Made of aluminum alloy materials in high quality, such a ruler is easy to use in the practical life. Specification: Item Type: Cross calibration ruler Material: Aluminum alloy Measuring Range: 0- 280mm Package List: 1 x Woodworking Ruler