Winter Multicolor Silicone Mini Hot Hands Self Heating Core Features: Quick: Contact air is immediately heated, the heat is fast, the inner is is the key, and the permeable film is used. No need to hot water, avoid accidental burns Use: School, Family, Church and all indoor activities and (outdoor) camping, hiking, fishing, skiing, concert, amusement park, and all outdoor activities. Easy to use air activation, use, one-time, odorless, and natural. It is to the environment. There is no electromagnetic wave. Everyone is packaged separately. Overdmise: 52 ° C continues to be heated, lasting for 8-10 hours, the heat is removed. Convenient to carry: Easy, anywhere, easy to carry, pocket bag, and bags can be placed. Product Description: Winter Multicolor Silicone Mini Hot Hands Self-heating Core Material: Silica gel Color: as the picture shows, (Due to the difference between different monitors, the picture may have slight color difference. please make sure you do not mind before ordering, Thank you!) Quick: Contact air is immediately heated, the heat is fast, the inner is is the key, and the permeable film is used. No need to hot water, avoid accidental burns Use: School, Family, Church and all indoor activities and (outdoor) camping, hiking, fishing, skiing, concert, amusement park, and all outdoor activities. Easy to use air activation, use, one-time, odorless, and natural. It is to the environment. There is no electromagnetic wave. Everyone is packaged separately. Overdmise: 52 ° C continues to be heated, lasting for 8-10 hours, the heat is removed. Convenient to carry: Easy, anywhere, easy to carry, pocket bag, and bags can be placed.