Construction Constructed from marine grade aluminum and stainless steel, the bracket delivers reliable rust resistance and longterm durability in harsh marine environments. HeavyDuty Stability A robust aluminum structure provides strong support to securely hold your fish finder, maintaining stability even in rough waters. Easy Height Adjustment A quick release system lets you adjust the pole length effortlessly from 36 cm to 59 cm, offering versatility for different fishing setups. Use scenarios Saltwater boat in rough conditions: keep the fish finder securely mounted and stable as waves roll by, reducing screen movement and improving readability. Compact vessels or limited cockpit space: set the height to align with seated or standing viewing angles for comfortable operation. Variable fishing setups: quickly reconfigure height to suit different anglers, seating positions, or sonar lineofsight requirements.