Eco warmer fluffy warm ring to be worn around the neck 1 piece set of 2

It gradually warms up in about 3 seconds. ●Eco warmer that can be used repeatedly. No power supply or batteries required. Maintains moderate temperature. ●It is economical and can be used many times, and the surface temperature is approximately 50℃. ●Size (1 piece): approx. 15 x 18cm, applicable neck circumference: approx. 29~33cm ●Weight (1 piece): approx. 130g ●Material/External body: TPU, Internal body: Sodium acetate, Cover: Polyester ●Made in China