These glasses are made from lead-free crystal, ensuring high transparency and a brilliant clarity. Each glass holds 31 cl, making them perfect for everything from water and juice to cocktails. RCR Oasis Tumblers are also environmentally friendly, as RCR is known for its sustainable crystal glass production powered by renewable energy sources. This pack includes 6 glasses, ideal for both everyday use and special occasions. RCR is an Italian glass manufacturer known for creating beautiful and elegant designs while maintaining a strong focus on sustainability. Their production is powered by renewable energy sources, resulting in crystal glass that is both stylish and environmentally friendly. All RCR glasses are made from Luxion crystal, which is 100% lead-free and renowned for its exceptional clarity and durability.