I purchased days two bottles simply because with four children in the house my liquid soap lasts 10 minutes and it gets so expensive, it’s time to start trying to save some money making things stretch a bit further. So these two bottles were a perfect size, I added some liquid soap and some water into the bottle. the neck of the bottles is wide enough to be able to do that without making Too much of a mess. Upon filling I tested it and after applying a few pumps and we have foam, which is dispenses a sufficient amount to be able to clean your hands as I say make the product last a lot longer in general... one upstairs and one downstairs... now to purchase some more for other toiletries!! Ie: shampoo and bubble bath !