These glasses appear to be the Lenox Tuscany Classics Martini Glass set, known for its sleek design, or a similar set from Schott Zwiesel,. Product Type: Martini glasses, usually sold in sets of 4 or 6. Material: Typically crafted from high-quality crystal for clarity and durability,. Design: Features a classic V-shaped cone bowl with a long stem to keep drinks chilled by minimizing hand contact. Capacity: Common capacities range from approximately \(5\text{\ oz}\) (\(150\text{\ ml}\)) to over \(9\text{\ oz}\) (\(275\text{\ ml}\)) per glass,,.