Brunton ComPro Pocket Transit International Compass with 0-90 Degree Quad Scales Brunton Product Includes compass Great for camping Precise pocket compass with NdFeB rear earth magnet and sapphire jewel bearing Azimuth and vertical angle (+/- 90 percent) readings are accurate to +/- 1/2 degree Color-impregnated composite body material; precision-aligned mirror with "see-through" sighting Magnetic declination adjustment allows for east or west declination settings to 180 degrees This item is not for sale in Catalina Island