Ritchie Angler Explorer Compass Features: 2-3/4" direct-reading dial. Easily adjustable bracket mount with thumb-screws. No-Glare gray finish with high-visibility blue dial. Distinctive Ritchie Angler graphics. Scientifically matched sapphire jewel & hardened steel pivot dial movement. Internal green night lighting. Built-in compensators to easily adjust for deviation. Movable sun shield. Directive force magnets.