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This gypsum drying board is perfect for speeding up the drying time on the bottom of my mugs if they are a tad too wet for trimming. It is about the size of my hand so it will only do one mug at a time. It was a little smaller than I anticipated but that was my fault for not reading the size. See my photo for size reference, it is sturdy with a good thickness. It is easy to use and wipe clean.