Humminbird GM H7 Gimbal Mount f/Select HELIX 7 SeriesGM H7 Gimbal Mount for Select HELIX 7 Series The GM H7 is a plastic gimbal mount for all HELIX 7 models products except HELIX 7 G4N models . This includes the gimbal mount, knobs and mounting hardware. Compatible Devices: All HELIX 7 models, except HELIX 7 G4N models WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information