double-insulated stemless champagne flutes wine tumbler, 6 oz unbreakable cocktail cups

material: the champagne flute is made of 304 stainless steel and the lid is made of abs, easy to cleanse with water washing and drying function: good at keeping the temperature of both and cold in several hours (3-5 h), treated with a special process to avoid fading and yellowing, provides a fresh taste