These are great for transferring paint from paint bottles into your airbrush. As you know, pouring paint out of the bottle just ends up getting paint on the bottle threads and then it dries there and you cannot get the cap off ever again. I use these all the time in my shop and buy them by the thousand so I thought I'd offer them to my customers that might want to use them as well. They are "disposable" however if you are using acrylic paints and keep a cup of water on your desk you can easily clean them out and use them over and over again.
