Check the listing for details. Hummingbird Solix 12 , Theft Deterrent Gimbal Knob Kit Limited Lifetime Warranty. Condition: New. Listed at 23.84 USD. Enhance the security of your fishing equipment with the Hummingbird Solix Theft Deterrent Gimbal Knob Replacement Kit. This kit, designed for freshwater/ Saltwater fishing, is made from high-quality materials such as nylon, stainless steel, and plastic ensuring rust-free performance. It is compatible with all Hummingbird Solix 12 and 15 inch models and comes with a convenient replacement knob to deter any potential theft. The black color of the kit matches perfectly with your Hummingbird unit, and the kit is manufactured in the United States ensuring premium quality. Don't let the fear of theft ruin your fishing experience, get your hands on the Hummingbird Theft Deterrent Gimbal Knob Replacement Kit today.