With its exceptional durability and stunning designs, Bold Drinkware is the most luxurious way to enjoy cocktails on the rooftop, by the pool, when dining outdoors, or while leisurely boating. Stackable, flexible, and infinitely practical, the Bold Drinkware Club Stack Rocks Glass, Set of 6, features unbreakable construction and thoughtful water dispersion, making it perfect for fast serves and functional luxury. Each piece has an internal shelf made specifically to stack without sticking or scratching and is perfectly balanced and weighted to be a joy to use. Cold drinks stay cold longer, and iced drinks are less diluted as Bold Drinkware’s premium polycarbonate naturally insulates 4x better than glass. Unbelievably durable and virtually unbreakable, Bold Drinkware’s premium polycarbonate is perfect when only the highest quality, clarity, and most luxurious alternative to crystal is needed. The proprietary Crystal Sapphire formula has been specifically developed to provide unparalleled shine and world-renowned clarity. Bold Drinkware has been rigorously tested and is guaranteed for up to 2,000 cycles in a commercial dishwasher. That means each piece’s unparalleled shine will continue wash after wash, and the cost per use will continue to drop with every cycle.