the holes in this tarpaulin irritated me a lot, since by them, filter out dirt particles from the air and other small animals, but ultimately the fact that water transom prevents the wind from the blow away (in my region, winds are very violent) the size is perfect. I'm alone and install was a headache until I had the idea of buying a tarpaulin construction, I then drag the tarp my pool in the sense that it must be delivered, Result: I win a lot of time and the tarp stays clean (I have a garden).