Feature: 1. Smooth design, each edge and corner of the ruler body and ruler base are polished by a special process, so that it is smooth and does not hurt your hands. 2. Adopts high‑quality aluminum alloy material and thick design, with high corrosion resistance and oxidation resistance, high hardness and durability. 3. The scale is clear, the metric and inch double scales, the writing is clear, the reading is clear and not easy to wear. 4. It can be used for measuring the height, easy to use, easy to handle without damaging the edge. 5. Essential tool for home builders, DIYers, carpenters, artists and hobbyists, very useful for machine setup. Specification: Item Type: Triangular Ruler Material: Aluminum Alloy Color: As shown in the picture Product Overall Size: Approx.68x14.5x95mm/2.68x0.57x3.74in Large Hole Diameter: Approx.22mm / 0.87in Small Hole Diameter: Approx.10mm / 0.39in Weight: Approx.118g/4.2oz Application: Metric and imperial woodworking ruler DIY enthusiast hand tool . Package List: 1 x Triangular Ruler Note: 1. Please allow 1‑2in error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.