Product Name: Hand Warmer Model NO.: W202 Product Description FEATURE:1)Material: two sides non-woven fabrics2)Size: 55mm * 90mm3)Color: White4)Air-Activated5)Average temperature:50~55°C6)Peak temperature: 60°C7)Heating time: 8 hours8) Weight: 25g±2g/PCMAIN INGREDIENTS:Iron powder, Salt, Activated Carbon, Water, Sodium Polyacrylate, Wood powder, VermiculiteINSTRUCTIONS:Portable heat in the palm of your hand. Air-activated Hand Warmer keep hands and fingers warm for over 8 hours.(Average temperature 50°C) No need to shak and kneed, open the package and put the "Original" Warmer in your glove or pocket for a few minutes to start the process.