These glasses have a unique design with a slight tilt. The base is thick, providing stability and a luxurious feel. They are made of Tritan® crystal, also known as next-generation crystal, an environmentally friendly product that contains no lead or barium. 【Features】 ・Beauty beyond crystal: Compared to traditional crystal, the brilliance and clarity are enhanced. ・Amazing durability: Strong and less prone to breakage, dramatically increasing the lifespan of the glasses. ・Dishwasher safe I received these as a gift and have been storing them at home for a while. I opened them for the photos. Type: Rock glasses Shape: Round Glass/Cup/Wine glass: Pair (2) Material: Glass twiesel