This is a truly genius product. Straining paint is a good a practice as mixing paint properly, especially with cans that have been opened and re-sealed, but has always been sloppy, and time consuming. This strainer/spout combo makes straining your paint as easy as pouring it. Just clip on the spout with the disposable mesh strainers and pour into your paint tray, job done. This is a must have for professionals and DIYers.