Features: brand new and high quality. APPLICATION: Perfect for cold days and cold days at the office or at home, the mini heater can be reused to warm hands, fingers and pockets comfortably. CUTE AND PORTABLE: The hand warmer can be put in any pocket or for jacket pocket, and provides warm hands with a temperature of about 45 degrees. PERFECT GIFT: The perfect gift for your family or friends in the cold winter. They will never feel cold this winter. RELEASING HEAT: Just click the built-in metal sheet. The material in the metal sheet chemically reacts with the liquid and generates heat to warm your hands. REUSABLE: The manual heater can be used repeatedly by boiling in hot water, so the heat can be activated. Specifications: Material: PVC Size: approx 8-10cm/3.14-3.93 inches Color: 1/2/3/4/5/6/7/8/9/10 Package Includes: 1x Hand Warmer note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.