La Rochere's Napoleon Bee 3.2-ounce espresso cups are classic and perfect for everyday use. The four assorted designs elegantly compliment each other are comfortable to hold and are dishwasher safe. Steeped in tradition La Rochere is the oldest glass factory in France where the pieces are fired at very high temperatures producing an exceptional quality glass that is crystal clear and durable. A pressure seam is sometimes visible, which is the mark left by the mould in which the glass is pressed. It is the characteristic of pressed machine glass, symbolizing its French heritage.