Ritchie RU-90 Voyager Flush Mount CompassThe Ritchie RU-90 Voyager fits a 3-1/2" hole and is easily installed with the included hardware. The brite white lettering along with the 45 & 90 Lubber lines make for easy reading. Powerful DirectiveForce magnets allow for fast heading lock-on. The high temperature composite construction combined with the hardened steel pivot dial movement makes a durable compass that can withstand harsh marine environments.Features: 3" PowerDamp Flat Dial; Directive Force Magnets; High Temperature Composite Construction; 45 & 90 Lubber Lines; Hardened Steel Pivot Dial Movement; Repairable;