Supersport(TM) CompassDeveloped for and tested on offshore race boats the SuperSport Series compasses feature the PowerDampA(R) Plus dial. This dial technology features the PowerDampA(R) dial skirt to prevent oscillation, larger DirectiveForce(TM) magnets for quick lock on and extra-large steel pivots and jewels for smooth fast action.Features: 4 1/2" (115 mm) PowerDamp Plus, High-Visibility Blue Dial with Extra Large White Numerals Easily Installed, Fits 4.75" (121 mm) to 5.125" (130 mm) Mounting Hole Built-in Compensators to Easily Adjust for Deviation Internal Gimbal Systems for Maximum Stability During Adverse Pitch and Roll Conditions 12v Green LED lighting standard 45 Degree Lubber Lines 100% Repairable Exclusive 5-Year Ritchie Warranty Approx. Shipping Weight: 2lbs 10oz (1.19kg)Notes: Comes standard with 12v lighting. 24 & 32v lighting options are available. Some custom built OEM models may have different lighting. Specifications: Lubber Lines: Yes Backlight: Yes Read: Rear Mounting Style: Flush Box Dimensions: 7"H x 8"W x 8"L WT: 2.9 lbs UPC: 010342150011 Quick Guide (pdf)Owner&';s Manual (pdf)