Rust resistant materials: Marine grade aluminum and stainless steel provide durable, long lasting construction with resistance to rust in marine environments. Rotatable design: The support rod can rotate to set the angle for your fish finder, improving visibility and usability. Sturdy aluminum frame: Heavy duty construction keeps the fish finder securely mounted even in turbulent conditions. Quick release adjustment: Easily change the pole length from 36 cm to 59 cm with the quick release system for positioning during fishing trips. Use scenario: On a bass boat or saltwater craft, quickly adjust height and angle to view the fish finder screen while standing or seated, reducing glare and eye strain. Use scenario: In a kayak or small boat with limited space, the compact, adjustable design allows easy repositioning for different viewing angles. Use scenario: During multi location trips, the quick release and adjustable length enable fast reconfiguration to suit varying water conditions and fishing spots.