4pcs cups with 80ml capacity each Material: Borosilicate Glass Premium quality glassware is known for durability & elegance Dishwasher safe Size: 6.7cm(Dia) x 6.3cm; Gross weight: 245G DOUBLE WALL INSULATED GLASS MUGS - The double-walled glass coffee mugs keep the temperature of liquid hot or cold for a longer period of time while the outer glass wall remains comfortable to touch. Moreover, our mugs also keep iced coffee cold longer than porcelain or ceramic cup. SUPERIOR BOROSILICATE GLASS - 100% lead-free these insulated coffee cups are made of premium quality borosilicate glass materials, which are more durable than normal glass, with high-temperature resistance. 80ML CAPACITY - These Royalford Double Wall Cup Set have a capacity of 80ml volume which is ideal as juice, beer, cocktails, or gin and gifts for people. They will be well received by anyone and make them smile. NO CONDENSATION - The double-wall construction also prevents condensation from forming on the outside of the mug, so no need to worry about those irritating rings forming on the table. FOR ALL OCCASIONS - The clear glass coffee mugs give a smooth finish and a crystal clear look, creating a nice feeling in the hand, it’s a perfect addition to your breakfast and afternoon tea time. A clear coffee mug could be the ideal gift for your family or friends, especially on special occasions.