Big screens need serious support. The RAILBLAZA fish finder mount R-Lock S is built to hold larger fish finders - up to 5.5 lb - without flinching. Designed for units like Garmin Striker, Lowrance Elite and Humminbird Helix 5 and 7, this mount delivers full tilt, swivel and rock-solid friction lock stability through two R-Lock joints. Mount it to any StarPort, adjust it on the fly and trust it to stay locked in whether you're running through chop or working a point. Tool-free installation means no wasted time at the ramp and the marine-grade polymer build means it won't fade, crack or rust no matter how salty your sessions get. When your sonar is your eyes, you need a mount that doesn't blink. This is it.