Select super soft cloth fabric, absorb heat and release to the surrounding, avoid due to high temperature.Efficient insulation, winter warm all night. Physical conduction heat dissipation uniform, efficient heat preservation, a new comfortable experience, warm a "quilt" son.Water injectionHand Warmer: Pocket cute hand warmer, small and delicate, can be held with one hand, and can be carried in a travel bag or pocket. Great for outdoor, travel, work, hunting, sports, fishing, hiking, skiing, camping, bikingInnovative use of integrated molding technology, delicate skin, like a baby's skin, pinch up soft and comfortable, bring a gentle sense of healing, no dust, easy to clean.Winter Perfect Gift: This is a must-have to get through cold winters, especially for the hyperthermia needs of those with Raynaud's arthritis. Hand warmers are a great gift for Thanksgiving, Christmas, New Years, Birthdays and Anniversary gifts for loved ones, kids, family and friends, and perfect for outdoor enthusiasts.Product name: water hot water bagName:Hot Water BagProduct Type: Hand Warming SleeveType: Hand WarmingInstallation: Portable,FreestandingFeature 1: Heater Electric Low ConsumptionFeature 2: Heater For HomeFeature 3: Antifreeze HeaterFeature 4: Heater Electricscolor:BlueMaterial:PVC+sheep velvetsize:26 x 17CMPackage Contents:1 x Warmer Water BagOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.