Product review (1 stars): USELESS GARBAGE:  Way too stiff / unflexible. Won't go around even one right angle (90 degree turn), and only 10 feet.
USELESS! The "cable" is NOT FLEXIBLE! It's a couple of stiff steel thin bars encased in a clear plastic tube. It cannot go around a 90 degree (right angle) turn. I guess it would be OK for a straight run but any stick 10' long is good for that!
ONLY TEN FEET??? My vent is over 15 feet, so it's TOO SHORT for most applications.
The brush is too soft.
The vaccum tube is crushed by  being folded in the package.
I bought this at the local store and returned it. Piece of junk.
Usually just a Shop Vac can suck and blow the lint right out, and/or For $10 bucks I bought the NYLON ELECTRICIANS FISH TAPE and tape a brush or lump of cloth and snake with that, it's SUPER FLEXIBLE!