Features: 1. This product uses a sophisticated mirror-like acrylic material with crystal-like transparency and a light transmittance of over 92%. 2. Using new material, imported oil, the bubbles can be gathered in 1 second after impact, placed at minus 20, 65, after 12 hours, then return to normal temperature, the bubble size is restored. 3. It can adjust the level of woodworking measuring tools, adjust the level of factory machinery and equipment, adjust the level of special instruments, adjust the level of office desktop and other places where high measurement accuracy is required. 4. It makes it easier to adjust the level of items you use frequently, and the angle is more accurate. 5. Small body and high accuracy, a good helper in your life. Specification: Condition: 100% New Material: ABS + Acrylic(transparent part) Package List: 1 * Slope Inclinometer Angle Finder