I am a search/rescue SCUBA diver. I bought these so that should I find my target underwater such as a gun or body or whatever, I could release the float from my depth and it would mark my position for surface crime scene documentation etc. PROBLEM: when you get down to a nice depth, they collapse and become useless. Using them as intended was perfect. Using them for my needs… not so good.
I am a search/rescue SCUBA diver. I bought these so that should I find my target underwater such as a gun or body or whatever, I could release the float from my depth and it would mark my position for surface crime scene documentation etc. PROBLEM: when you get down to a nice depth, they collapse and become useless. Using them as intended was perfect. Using them for my needs… not so good.