I love these blenders which I've had trouble finding in the big box craft stores. They're so much easier to hold than pieces of sponge, and they make it easy to apply color evenly. I've purchased a half dozen so that I can switch colors and don't have to keep washing them after each application. I just learned about bokeh (making circles of color that look sort of like fuzzy light reflections--not a very good explanation, I know), and these sponges make it quite easy.
Bought six of these and will definetly buy some more. These wash up very good to be used with another color. The sponge is a little stained when using a darker color but it does not affect anything when usng a lighter ink, (when washed properly)