Electric Heated Foot Warmers-soft Foot Warmer Boots ,1515yellow The product is shipped based on the color or size of the main image of the product page. Specifications: By heating for only 3-6 minutes, this foot warmer can heat up to its maximum temperature, which can increase blood circulation and keep your whole body warm. Besides warming up your body, this foot warmer is also effective in relieving pain and is suitable for arthritis, back pain, cold feet and menstruating women. Foot warmer is made of plush fabric, in which the heater is composed of carbon fiber. And its maximum temperature is up to 50 degree Celsius. USB-powered foot warmer can be conveniently charged by 5V USB devices, such as chargers, power bank, car USB charger and computers. This heating pad can be divided into inner heating jacket and outer jacket, as well as a jacket with an invisible zipper. If you open the zipper, you can take out the inner heating jacket for cleaning. No matter you are at home, school, office, car trip, outdoor camping, or fishing, this foot warmer is the right choice for you.