Anti-corrosion: The product is made of aluminum alloy. The material is not easy to be deformed, anti-drop and anti-corrosion.Usage: The Aluminum Alloy Triangle Ruler is suitable for aluminum alloy, wood, stainless steel, marble, etc.Gift: High Precision Layout Measuring Tool is the best choice for Christmas gifts and other holiday gifts for maintenance workers, carpenters, installers, construction workers, engineers.Easy to read: The 3D Mitre Angle Measuring Tool has a clear metric scale, which is accurate and easy to read.Delivery Quantity: 1pc,Package Contents: Only the above package contents, excluding other products.Size: The detailed size is shown in the picture(Reminder: The size is measured manually, please allow 1-2 cm measurement error)Colour: Black(Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)