100% brand new and high quality 1. Cuttable Size: DIY heated insoles you can cut Electric Heated Insoles to your own size according to your needs. Suitable for men and women from 230-250 mm size or 255-275 mm. Ideal for all kinds of shoes. 2. Lasting Foot Warmer: Heated insoles use of far infrared carbon fiber can promote blood circulation in the feet, large heating surface, even heat distribution. The highest designed temperature is 50/122 F. 3. Cleanable and Reusable: Heated insoles are eco-friendly and can be used repeatedly, be careful not to machine wash & Be sure to dry thoroughly before use. 4. USB Charger: Portable rechargeable heated insoles, light and elastic, include a portable USB Connector with long cables to charge via power bank, laptop, plug adapter and any devices with USB port. 5. Wide Range of Uses: Heated insoles efficiently prevent your feet from cold and against the cold in the household/ cold outdoor. Perfect for outdoor activities hiking/ skiing/ hunting/ fishing/ camping etc. Specification Material: EVA Color: Black Size: 35-39(230 mm-250 mm), 40-44(255 mm-275 mm) Weight: 150 g Constant temperature: 50 Package Include: 1 Pair Heated Insoles 1 USB Charger Notes. 1. The monitor used is not the same, the computer is not the same, the angle of photography is not the same, there may be angle colour problems. 2. Purely manual measurement, there may be 0-1cm error.