If [Your Name] Can't Fix It Personalized Engraved 40oz TumblerHigh Quality Material: Our tumblers are using SUS 304 body and a premium opaque material lid. The double wall insulated design, with a vacuum layer in between, keeps your drink at the desired temperature for 3 to 4 hours. The durable color coating ensures it wont fade, peel, or crack even with extended field use, and it provides an additional grip. User Friendly: We recommend hand washing for easy maintenance. The removable lid twists off