Ritchie Kayaker Compass - Surface Mount - Black. .. So you don't have to 2-3/4" Direct-Reading Dial Low Mounted Height Surface Mount Easily Installed. Extended Temperature Operating Range with Composite Construction & Diaphragm Exclusive DirectiveForce Magnets Hardened Steel Pivot and Sapphire Jewel Movement No Wiring or Power Needed Twist On/Off for Easy Removal for Security Transport & Storage Exclusive 5-Year Ritchie Warranty Package Contents: Ritchie XP-99 Kayaker Compass Ritchie XP-99: XP-99 Kayaker Compass - Surface Mount - Black