Features: Experience quick and efficient heating with our electric heated insoles winter foot warmer. Quickly heating up to 60, warming your foot and toe in seconds, providing comfortable and warm in the cold winter. Say goodbye to cold feet! There are different size line marked on the elestric self heating shoe pad, you can cut it to fit your shoes, small size from 35 to 40, large size from 41-46. Suitable for most man and women. Equipped with 3000mAh battery, 9hours long heating time. Temperature adjustable 35-70. Breathable electric heated shoe pad foot warmer, washable and reusable. Hand wash only. Our electric heated shor pad foot warmer with APP control, convenient to use. Fit on various shoe, such as sports shoes, boot, leather shoes, cotton shoes and more. Widely used for outdoor freezer work, or for various outdoor sports: skiing, snowboarding, hiking, bicycling, fishing, cycling, hunting, camping, walking dog, and other outdoor activity. Great holiday present for women, men, friend, family on various holiday, such as Christmas, Thanksgiving, Birthday, Anniversary. Specifications: Color: Black Component: Fabric Size: Approximately. Weight: Approximately. 310g Package Includes: 1Pair of Electric Heated Insoles Shoe Pad note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color