Introducing the Aderia Sogi 420ml Glass Tumbler Set - 3 Pieces, designed for easy grip and perfect for everyday use. Made by Aderia Co., Ltd., a company with a 200-year history known for producing Ishizuka Glass. This set, made to last, is a testament to our commitment to delivering excellent quality glassware in the Japanese market. After use, ensure thorough washing and complete drying before storage. Experience the durability and craftsmanship of Aderia Glass, a brand trusted for generations.