Rudolf Eschler's 1934 design is marked by the austere and efficient forms of the functionalism of the thirties, with its sharp contrasts with the lively aesthetics of the twenties Tumbler-cut double old-fashioned glass is made of lead-free crystal Approx. 3"Dia. x 4"T Capacity: 7.3 oz Item Weight (Lbs.): 1.0 Not suitable for hot drinks over 104°F (40°C) Not microwave or oven safe Avoid contact between glasses during storage Hand wash Made in Czech Republic