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Grog Buff-Proof Ink and Full Metal Paint refills are made in Italy and are great for use in mops and squeezers. The black ink dries quickly to a fadeproof, permanent finish that is resistant to some cleaners and the paint is fade-resistant and super-opaque. It's also thinned out just right to give you them sloppy, drippy tags if you want, or clean, streak-free lines.