Clinometer with High Resolution for boats, off-road vehicles, airplanes and machinery directly attaches to any surface. The easy-to-read gauge provides rapid heel-angle readings. There is no hardware required. PERFECT TILT READING. A unique damping mineral oil fluid is used by the stainless steel ball to ensure smooth, precise readings. FAST-READING DISPLAY. An effective, simple-to-read display is created using hand-painted numbers. The tube assembly is manufactured from a tough PU. MOUNTS WITH 3M VHB TAPE - Includes a piece of 3M VHB (Very-High Bond) tape on the back for easy mounting. Small in size allowing for easy mounting on almost any surface.