After spending so much on the scanner, I want to make sure it lasts! However, putting it back in the box after every time I use it did not sound appealing. I searched for a solution and found this cover (I actually debated about just putting a towel over it!). I was concerned because it came in such a flat package, but it fits over the scanner wonderfully and will definitely keep dust out. The only thing that would make it better is if it had elastic at the bottom or something to tuck under the scanner so it fits more snug.