Not a very good one. They dont withstand the pressure from common loads and blow apart. Not very quiet either. Waste of money gimmick considering the $200 tax stamp and all the hoops to jump through. There are better cheap homemade options, but it’s worth stepping up to a real one starting at a few hundred bucks.
Edit: Lol previous post with vid wasn’t there when I started typing, but supports my point.
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