Crafted for everyday use, Arcoroc Conical glasses are made from extra-resistant, fully tempered glass. This special treatment ensures they can handle thermal shock without cracking or breaking. And for added peace of mind, even if a breakage occurs, the glass shatters into small, smooth shards for safety. The glasses are stamped with UKCA-CE for sale in the UK, Northern Ireland and Republic of Ireland. Plus, they are dishwasher safe, allowing for a quick turnaround of fresh glassware during service.