Ritchie FNW-201 Navigator Flush Mount Compass - WhiteThe Richie Navigator Compass features a 4-1/2" PowerDamp Flat Card Dial. Flat-Card Dials allow you to look down on the compass to see the course heading. Large numerals make this compass easy to read. The PowerDamp system eliminates spinning and dial jumping at high speeds, ensuring an accurate reading even in rough conditions. The flush mount is ideal for today's compact dashboard designs. Ritchie recommends mounting your compass directly in front of the helm, as well as directly above the centerline of the hull. All Ritchie compasses use a Hardened Steel Pivot and Triple Cup Sapphire Jewel Movement. They are microscopically matched to provide smooth dial operation and fast lock-on, even under severe conditions. Powerful DirectiveForce Magnets for fast heading lock-on; 12V Green LED lighting standard; Built-in compensators to easily adjust for deviation; Movable sun shield; 45 degree lubber lines; High temperature construction for extended operating range; 100% repairable; Specifications: 4-1/2" Dial; Fits 4.75" to 5.125"Mounting hole;