Explorer Compass Features 2 34 Easy to Read Direct Reading Dial Easily Installed, Fits 3 34 9.53 cm Mounting Hole Internal Green Night Illumination Built-in Compensators to Easily Adjust for Deviation Scientifically Matched Sapphire Jewel Hardened Steel Pivot Dial Movement Powerful DirectiveForce Magnets for Fast Heading Lock-on Movable Sun Shield High Temperature Composite Construction for Extended Operating Range 100 Repairable Exclusive 5-Year Ritchie Warranty California Residents WARNING Ca