Description: 1.100% new and high quality 2.Perfect for cold days out and cold days in the office or at home. 3. Use when out skiing or in cold weather and also just when you are at home. 4.Warm up instantly, keeping you comfortably warm for about half an hour. 5.Gel pad that crystallises once the metal disk is clicked releasing heat. 6. Reusable, boil in a pan of boiling water for 10-15 minutes. How to use: 1. Force activate the heating plate. The iron plate is very stubborn and you press and hold the center. 2. The sheet metal material reacts chemically with the liquid and generates heat (solidification of the liquid) as the product starts to generate heat. 3. After coagulation, place the body bag in boiling water and warm it for 3 to 5 minutes. Once melted, it can be used again. Specification: Material: Gel + PVC Heating time: 0.5 hours Heating temperature: 20-55 degrees Celsius Size: as shown Package Includes: 1 x Hand Warmer Note: 1. Please allow 1-3cm error due to manual measurement. 2. The colors may be different for the different display,please understand.