Uses-(indoor) 1 x Chilldren Hand Warmer schools families churches and all indoor activities as well as (outdoor) camping hiking fishing skiing concerts amusement parks and all outdoor activities. Material: ，Silicone to use-air activated ready to use disposable odorless and natural. to the environment. There are no electromagnetic waves. Each one is individually packaged. Size: 7.5x5.5cm/2.95x2.17in activate the heater or when the temperature drops during use (the heater heats up within 10 minutes) Activation-Gently shake and massage to Easy can last for 8 hours. After using the you can replace the and continue using it. Each package comes with one . Each
