Thermos Jdc-351esp (Black) Stainless Steel Vacuum Descktop Mug 350 Ml is Designed to have a long-lasting hot or cold drinks with this stainless steel thermos mug, perfect for home or office use. Its insulated structure maintains the ideal drinking temperature for hours, while the included lid helps protect your beverage from dust. Lightweight and durable, the mug is dishwasher safe (excluding lid and holder) for easy care.