【High-quality material】The non-electric foot warmer is made of high-quality rubber and flannel material, which is durable and has good heat transfer performance. It meets international safety standards and is quality guaranteed, so you can use it with confidence. 【Warm and comfortable】The heated slippers have a removable soft fleece cover that is warm and soft to the touch, effectively preventing heat loss and providing you with continuous warmth every cold day. Easy to carry and use, you can use it whether you are at home, in the office or in the car. 【Practical design】The foot warmer is equipped with removable and washable foot covers that can remain soft after repeated washings. There are non-slip silicone particles on the bottom of the foot warmer, which can effectively prevent the foot warmer from moving and relieve cold feet in winter. It also promotes blood circulation and relieves tension and stiffness in the feet. 【Large capacity】The water bottle foot warmer has a capacity of 2 liters and is suitable for feet up to size 42. It is very suitable for most adults. The wide mouth of the foot warmer makes it easy to pour hot water, making it safer and more convenient to use. Note: The injected hot water should not exceed 2/3, and the hot water temperature should be controlled below 80 degrees. 【Perfect gift】The vibrating massage cushion with foot warmer is your sweet companion and makes your winter full of warmth and vitality. It is also a perfect gift for parents, family, friends and yourself.