After reading reviews & doing homework before purchasing this umbrella screen... some reviews helped out alot in telling how & what to look out for... so I was very skeptical at first, but I figured I would'nt lose out too much because of price. As mentioned before, throw out the little sheet of paper ( supposed to be manual directions of how to install ). This is useless, you have to install by trial & error. First: I purchased a 8ft. umbrella because I did not want to go thru headache of 9ft. being to big... good thing I did, this screen just fits the 8ft. umbrella perfectly, if I had a 9ft. the screen bottom would'nt even touch the ground. The screen came in perfect condition, no holes or tears. In our case as mentioned in reviews, we had to first put screen over umbrella partially opened, & while the whole umbrella was lowered on ground... just draw in the string adjuster... then start opening umbrella slowly being careful not to tear screen because screen is very cheap & lightweight... we then put the umbrella on stand on table... then opened umbrella up rest of way... best with 2 people, 1 on inside, other out, then you can modify screen evenly adjusting all the way around. The person outside might have to stand on a chair or some type of platform to draw & tie string adjuster. Be careful zipping & unzipping, take your time ( again this is cheap material ). We did fill in tube at bottom with water, & do not fill tube all the way, as soon as water reaches all the way around, stop. do the same with adjusting & positioning tube as you fill. BINGO... you are done. We have had this up for a few days, no leaks, keeps insects out... so far it works. Don't no for sure what we will do when a bad storm comes, because I can tell it will be a little difficult bringing down & back up.. as read before, we might have to velcro strips around screen to keep in position. I would recommend this product because its a cheap way of providing comfort without dealing with insects... just do your homework before purchasing. UPDATE: Had this a full year so far... and it is still holding up, no leaks or tears... it has sustained some very bad winds and storms, I take it down if I'm at home and know a bad storm is coming, there has been one occasion where we had a terrible windstorm and it blew everything over, was not home at the time, but no damage done to screen... after taking down and putting back up ( a lot of experience doing this )... its easy and still holds up well, I still recommend being careful not to zip zipper up to quick, because it can get jammed and tear screen... this is easy to store in winter time, just keep in a safe place being careful not to snag net.