The Luna Collection, designed by Studio Ichendorf, features handmade, lampworked borosilicate glass, showcasing exquisite craftsmanship and the delicate beauty of molten glass in each piece. Made of borosilicate glass Approx. 3.54"Dia. x 3.9"T Holds 14.2 ounces Item Weight (Lbs.): 0.2 2piece set Dishwasher safe; hand washing recommended Imported