Polyurethane foam material is a new type of synthetic material with waterproof function, featuring low thermal conductivity, high and low temperature thermal conductivity, and long-term heat retention and cold preservation. Heat preservation and refrigeration: The thermos adopts three-layer heat preservation technology. Our insulated food containers can keep food cold for up to 12 hours and hot for over 6 hours. It is ideal for storing food temperatures and refrigerated beverages. High-quality health and safety: The airtight tank for multi-functional storage is made of high-quality stainless steel, strong, durable, antibacterial, corrosion-resistant, and safe for daily use. The base is non-slip and stable, and will not damage the desktop. The stainless steel hot and cold insulation pot is easy to clean and handle. With the handle and barrel fixed, you can lift the handle and move the insulated barrel directly. The stainless steel insulated bucket can be used to hold water, milk tea, coffee, tea, meals, and ice wine, suitable for kitchens, restaurants, and catering.