CORROSION RESISTANT: The marine compass is made of high quality ABS plastic material, which is durable, corrosion resistant and environmental friendly EASY TO READ: Adjustable mounting bracket and visible lubber line for easy direction reading. Precise Dial with bright LED for easy reading day or night, even those who are short sighted can read it without any difficulty ADJUSTABLE BASE: Allows you to adjust it for better vision. The arrow always points to the south, clear to identify the direction EASY INSTALLATION: Mounts easily to almost any flat surface with included EVA foam sticker or screws WILD APPLICATIONS: Pivoting compass for car and boat, works well to find your way without any other power source or tools. Great for boat, marine boat, truck, caravan and so on This is a professional multi-function on-board marine compass. Users can use this product with the attached tools for the compass deviation correction, and the compass with the power cord can external connect the vehicle or ship power used to supply the compass power problem of the lamp. Considering the convenience and the habits for the driver, the magnetic steel is specially adjusted in the opposite direction. The pointing direction of the compass is the same with the way forward of vehicles. Specifications: Compass Material: ABS Plastic Color: Black Package Weight: approx. 320g Length: approx. 13.7cm / 5.39" Width: approx. 9.3cm / 3.66" Package Included: 1 x LED light compass with some accessories