Thermos

This is a bottle designed to maintain the temperature of its liquid content for a long period of time regardless of the temperature of the surrounding environment. There are two types of thermos bottles; one for family use and one for portability. A glass thermos bottle is encased within the cylindrical green steel frame. The frame features a net-shaped openwork, and there is a handle on one side. There is a wooden stopper and rubber attached to the bottom of the glass bottle.