Description These mechanical meters are equipped with backlit, super practical for easily viewing at night or dark condition. They are made fromtop-class metal with strong durability. Waterproof and corrosion resistance will ensure its highly performance in working. Feature - Color: As shown. - Material: Alloy and Glass - Size: Approx. 4x4x4cm - Made of quality metal, anti-rust and corrosion resistant for durable use. - Waterproof and dust-resistant, just put it on the dashboard and don't need to remove it unless you want to clean it. - With backlit function, it is easy to read even at night. - Easy to install, no drilling required, its fits for car vent and it comes with adhesive tape on the cap. Putting on dashboard or inserting into car vent is up to you.Package list: 1 x Luminous Mechanical Thermometer