(Set of 4) 20 Oz. Crystal Clear Polycarbonate Heavy Base Mixing Glass *Break Resistant* -4 Pieces- 20 Oz. Ultra crystal clear glass-like Classic mixing cup Stackable, Round shape, Smooth design, Heavy base, Dimensions: 3.63 x 3.63 x 6.75 inches Break & scratch resistant Polycarbonate plastic Commercial heavy-duty grade, Restaurant quality Dishwasher safe and easy to clean