Double-layer insulation: Our champagne glasses use advanced double-layer vacuum insulation technology, which can keep the beverage warm or cold for about 3-5 hours while avoiding fading Wine glass with lid: each wine glass is equipped with a lid, the lid with a straw hole, easy to sip and clean, help to reduce splashing Material: The roasted glass is made of high-quality material, which is light in weight, , not easy to break, and rust-proof; safe to drink and easy to clean Wide range of applications: advanced insulated champagne glasses are suitable for storing most beverages, such as hot water, wine, beer, coffee, beverages, champagne cocktails, etc. They are easy to clean, and the glass set is sufficient for homes, offices, parties, swimming pools, picnics And ships