Viski 4321 Professional Lead-Free Crystal Mixing Glass Designed and sized for expert bartending, the 500 milliliter professional grade mixing glass accommodates one or two drinks and works smoothly in allegiance with our professional bar spoons and strainers. Features a thickset base, precision pour spout and Holds Up To 500 ml (17 Oz) Lead Free Crystal Construction Thickset Base With Precision Pour Spout Geometric Design