Title: False advertising
Review: The duct came without the attachment clamps, which was the only reason I paid $10 more for it instead of getting an identical one without the clamps. When fully extended, it is nowhere near 8 feet. I'm not sure you could get it to 7 feet without seriously denting it. It most definitely isn't meant to be stretched so far, as when it's stretched that much, even light pressure causes dents to form. You're better off going to a hardware store than buying this.
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