Come and see our amazing products. Use thickened glass to make the cup stronger to support higher and lower tempreture. Use glass straw, durable and more healthy.Keep your fingers safe and cool with heat resistant and thicken wall glassware, so beverages stay warm without you getting burnt!the outside surface always feels comfortable in hand.All parts are Lead-free and BPA/BPS free.The tumbler except the cap is top rack dishwasher-safe.Do not microwave.Do not freeze. Pls confirm with us about the packing info, stock color and exact production time before placing your order.