Stunningly simple and fantastically effective, Dishmatic is an essential aid to dishwashing that?s loved by everyone who uses it. Dishmatic Micro Soft Refills are ideal for all delicate or non stick surfaces. If in doubt, test on a non visible area first. They have been treated with our anti-bacterial agent to prevent the growth of bacteria. When the sponge wears out simply unclip it and replace with a new Dishmatic Refill. All Dishmatic refills are all interchangeable and all sponge heads have been treated with our anti-bacterial agent.