Product review (5 stars): Great duct cleaner. Bends well, comes with tons of accessories.
<div id="video-block-R1KRFXKWT4X216" class="a-section a-spacing-small a-spacing-top-mini video-block"></div><input type="hidden" name="" value="https://images-na.ssl-images-amazon.com/images/I/D1UK5insKpS.mp4" class="video-url"><input type="hidden" name="" value="https://images-na.ssl-images-amazon.com/images/I/914AqQRGIaS.png" class="video-slate-img-url">&nbsp;I bought it after a friends house caught fire due to excessive lint on the dryer ducts. My drier is about 10 feet away from the exhaust. It goes up one floor then 90 degrees right.  I use a snake camera and turns out my duct is very clean compared to other images I have seen online. The product bends well, and had no issues putting it in or out a couple of times. Check out the video I attached.
Notices I did not do a great job in the video removing all the lint, that is because of the camera cable was twisting. After removing the camera I got all of it out.