This luminous folding guide ball is a high precision compass designed for both automotive and marine use. Utilizing advanced technology, it ensures accurate measurement of tilt angles, making it an essential tool for navigation. The night glow feature allows for clear readings even in low-light conditions, providing convenience for nighttime driving or sailing. Features -Color:Black -Material:ABS Acrylic -Size:9.00X7.00X5.30cm/3.54X2.75X2.08in -High precision measurement: utilizes advanced technology to ensure accurate measurement of tilt angles, providing reliable navigation assistance -Night glow function: features a night glow capability, allowing for clear reading of the compass even in low light conditions, enhancing nighttime navigation -Foldable design: designed to be foldable for easy portability and storage, making it suitable for use in various settings such as vehicles and boats -Vehicle mountable: can be securely mounted inside a vehicle, offering drivers a convenient tool for navigation and positioning during travel -Marine application: ideal for use on boats, meeting the navigation and positioning needs during marine , ensuring safe and accurate travel Package list: 1pcs Car Compass