It is used for garbage collection inside the company's shredder. Previously I was using another company's 45L, but I bought this product because it will soon fill up. Although it is a round bottom, it can be used without problems. It is stronger and bigger than the one we used so far, it's easy to see and use because it is transparent. It is very convenient because it is also possible to take out one box at a time. It is compact and it does not bother troubled place and it is very satisfying as price.