- Premium material: Crafted from clear, smooth high-quality crystal glass. The glass body is transparent and safe to use, delivering the brilliance and elegance of fine stemware to elevate an elaborate cocktail. - Excellent design: Sophisticated crystal glasses that enhance your cocktail experience. The design helps maintain the right temperature so the drink isn’t too warm to alter flavor and isn’t too cold to dull texture. How to use: fill the bottom bowl with crushed ice, cover with the caviar bowl, and serve. - Perfect caviar: The caviar setup is designed to keep the temperature balanced to preserve taste and delicate texture. Fill the bottom bowl with crushed ice, cover with the caviar bowl, and serve. - Versatile use: Martinis and liqueurs are perfect for these cups as well. They can be used to serve chilled cocktails and spirits. For a special touch, dip the rim in sugar before filling.