Bomioli Rocco 00172 Riserva Grappa glasses, box of 6. With Riserva Grappa glasses, you can drink a refreshing glass of grappa while enjoying its full potential. Each glass hold 2 3/4 fluid ounces. Each glass measures 6.5" tall by 2.2" in diameter. Crafted from lead-free crystalline glass in an Italian glassworks. Styling combines stately height with tailored bowl shape and easy elegance. Dishwasher-safe, but washing by hand recommended for best care.