ADJUSTABLE BRACKET & VISIBLE LUBBER LINEThe boat flush mount is equipped with an adjustable bracket that can be modified to a reading angle depending on the user's sitting position. Additionally, the clearly visible lubber line makes it possible to read position | EASY INSTALLATIONThis marine compass can be easily mounted on any flat surface as it is included with EVA foam sticker or two screws. Ball ship compass for navigation is made waterproof & corrosion resistant | INCANDESCENT LIGHT DISPLAYTwo power cords on this boat's marine compass can be linked to the power supply 12V dashboard of a boat or sea ship. It comes up with incandescent light to fix lighting issues. Now, you can clearly see the dial whether you're driving or sailing during the night |