Description Are you looking for a professional, yet affordable guide ball? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our professional guide ball must meet you needs. It is one of the best choices for you. Features - ColorBlack - Size: 7.4 x 6 x 6.2 cm. - Material: Plastic. - This product is a professional multi-function car marine navigation compass. - The user can use the correction tool attached to correct the deviation of the compass. - Due to the convenience of the driver's observation and habits, this product has specifically reversed the magnetic steel.So the compass of this product is pointing in the direction in which the car is heading. (Inverse to the direction of conventional compass products). - Made of material, durable, easy to use and practical. - Strict quality inspectation system ensures you product. Made of material, durable, easy to use and practical. - Car Dashboard Compass Due to the convenience of the driver's observation and habits, this product has specifically reversed the magnetic steel.So the compass of this product is pointing in the direction in which the car is heading. (Inverse to the direction of conventional compass products). - Car Guide Ball Strict quality inspectation system ensures you product.-Car Compass The user can use the correction tool attached to correct the deviation of the compass. - Direction Pointing Guide Ball This product is a professional multi-function car marine navigation compass. - Magnetic Declination Adjustment Guide Ball