These DuraShieldTM lead-free crystal whiskey glasses are reinforced with Titanium for increased durability and to help resist chips or scratches. Barium is also added, in place of lead, to provide a truly lightweight crystal with an elevated brilliance. 100% Lead-free crystal for excellent durability, clarity & elegance. Designed for drinking whiskey, scotch or any other liquor enjoyed neat. Ultra-fine cold-cut rim for optimum mouthfeel. The Centre peak creates natural liquid motion. Handmade Dishwasher safe. Material: lead-free titanium reinforced crystal glass. Includes: Set of 4 Whiskey Lead-Free Crystal Glasses. Capacity: 300 ml (10 oz). Height: 7.5 cm. Diameter: 9 cm. Packaging size: 19.8 x 19.8 x 9.1 cm. Packaging style: Giftbox. Care: Wash before use. Avoid contact with hard and sharp objects. Do not use products in a microwave or conventional oven. Do not dry or store glasses upside down.