Review on CASEMATIX 16-inch Waterproof Marine Electronics and Accessory Fish Finder Case for 📱 Garmin Striker, Humminbird Helix, Lowrance, Raymarine, Simrad, and More GPS Chartplotter Fish Finders by Michael Powell

The thing is built like a tank! Super thick body and easy to adjust. I was able to fit two sonar head units in it at once and remove enough foam to tilt them instead of lying flat. I have a Humminbird Helix 7 DI SI and a Humminbird Helix DI GPS Gen 2. They have lots of space and lots of protection. I would suggest you could use this for multiple applications. There are two layers of foam for picking and plucking, and two outer layers of egg-crate style foam. I'll get another one for some firearm uses.