I used these bottles to have more hand sanitizer on hand. I ordered a larger size bottle of liquid hand sanitizer and put some in each of these smaller bottles. This way we have easy access in more places to sanitizer with the new virus going around. The bottles spray easily and spray just the right amount. I'm sure they would be useful for many other things but this is what I used them for and they are perfect for it! Plus the price you really can't beat!