High Quality MaterialsMade of durable, corrosion-resistant and environmentally friendly high-quality ABS plastic LED Light AdjustmentAdjustable bracket and visible lubrication line for easy reading direction of travel; Precise dial with bright LEDs for easy reading day and night Adjustable BaseAdjustable bracket and visible lubrication line for easy reading of direction of travel; Allows adjustment for better view; Arrow always points south to determine direction Easy Installation Easily attaches to almost any flat surface using the included screws or EVA foam stickers Wild Applications Compass for car and boat, works well for navigating without any other power source or tools; Ideal for boat, boat, truck, caravan, etc