Stable and antivibration performance: The sleeve structure fixes firmly after tightening, providing reliable stability even with hull movement or rough water. Secure base mounting: Screwtype fixing keeps the base stable and minimizes shaking or loosening during use. Flexible adjustable azimuth: The joint at the head and the knobcontrolled position allow rotation and horizontal/vertical offset for precise aiming. Dedicated fish finder display installation position: The sleeve structure sits under the base, and the display position can be adjusted by loosening the knob. Why you need it: Keeps your fish finder display steady for clear reading in rough conditions, reduces readjustments, and allows quick reorientation to meet different mounting angles and lighting. Key benefits that stand out: simple screwtype fixation for reliability, adjustable azimuth for versatile viewing angles, and an underbase sleeve design that supports adjustable display positioning. Practical use scenarios: 1) On a saltwater fishing boat with choppy conditions, where a stable display view improves targeting and navigation. 2) On a kayak or small craft, where compact, adjustable mounting helps maintain readability while you move. 3) In a centerconsole setup on a larger boat, enabling easy reorientation to reduce glare and improve visibility from different seating positions.