These hand-thrown, terracotta cortado cups have a very special feature. Using a limited glaze at the studio resulted in the exterior being ‘soft rough’. That meaning it isn’t scratchy, but it is able to file your nails and doesn’t damage the surface when doing so. The inside is completely food safe. However, it is NOT DISHWASHER OR MICROWAVE SAFE!!! Hand wash only please. cups pictured individually are the only ones left