warm hand /heat pad easily to use no odor,no radiation natural ingredients specifications for OEM processing Namewarm hand /heat padSpecificationJapanse Skill,Inner size: 9.6*7.0 cm,Max Temp: 60centigrade degree, ave temp:50centigrade degreeDuration time: 12hours or longerIngredientsIron powder,activated carbon,vermiculite,water and salt.CharacteristicsEasy to use,no odor, natural ingredients,no ...