Set of 2 espresso cups. 1.5 ounce capacity per cup. Transparent Polycarbonate. Good thermal insulation. 2.5 in. diameter x 2 in. H ( 0.25 lbs.) The Handpresso Unbreakable Outdoor Cups are made for the outdoor enthusiast. Light, elegant, and strong, these cups can be taken anywhere from your favorite beach to a hike in the woods. Wherever, you go, these cups can go with you on land and on the water! Made from a transparent polycarbonate, these espresso cups offer fantastic thermal insulation and 1.5 oz holding capacity. Sold in sets of two, they are dishwasher safe, but not recommended for the microwave.