Item Type: Hand Warmer Shell Material: Silicone Function: Handheld heating Size: Approx. 7.7 x 4.2cm/3 x 1.7in Package List 1 x Hand Warmer This product does not include heating patch. 1Hand Warmer Function: Its heating temperature depends on the temperature of the heating patch (not include), the temperature is constant, and the heating patch can be replaced repeatedly. 2Three Dimensional Modeling: Cute cat three dimensional modeling, ergonomic design, closer to your palm, warmer and more comfortable. 3Silicone Shell: Made of high quality silicone material, the touch is similar to human skin, smooth and soft, non toxic and odorless. 4Lightweight and Portable: The weight of the hand warmer shell is only about 0.5oz, convenient to carry, and it is washable, which has a long service life. 5Application: Suitable for outdoor and indoor, such as office, school, home, camping, hiking, fishing, skiing, amusement park, etc.