Is a cheap double ender from china worth buying? [Cheap vs. Expensive Scuba Gear]

Is cheap vs. expensive scuba gear worth buying? I bought 50 double enders for 2$ each from china and checked if it's worth buying compared to a 12$ one from the local dive shop. This is part of my series "Cheap vs. Expensive Scuba Gear". Quality has it's price, sure, but is cheap scuba diving gear always bad and low quality? I put it to a test with scientific methods. In this case, I tried my best to corrode the double enders. If I was successful and if it's worth paying the 6-fold price - watch this video (plus I added some nice B-Roll) Information about the steel: https://www.alloywire.de/products/stainless-steel-316/ I ordered the cheap Double Enders here: http://divediy.com/ For expenive double enders go to: https://amzn.to/2Jzs4aU  If you want to get the healing water yourself, visit: https://goo.gl/maps/8EgtiKnhwu89jWZM7 Calculate your own saline solution: https://rechneronline.de/chemie-rechner/saline-solution.php