SportAbout Hand Bearing CompassFeatures:Easy to Read 2″ (51 mm) Direct-Reading DialHardened Steel Pivot and Sapphire Jewel MovementBuilt-in Roller Diaphragm for Extended Temperature Operating RangeInternational Safety Yellow CaseSilicon Impact Resistant Case with Neck LanyardCompact Size for Easy Handling and StorageQuickSight V-Notch and Lubber Line for Easy Heading AlignmentNon-Electric Chem Sticks Provide 18 Hours of Night LightingHolder Available in Black or White. Ideal for Deck Mounting SportAbout Compasses on Small Boats