... service 4.high qualiy-price ratio2.non-toxic,reusable,instant,portable 3.heat anywhere,anytime 4.Certificate ... using battery and hot water and can be reusable many time, the magic bottle heat pads recycled ... the metal piece inside the pad,the magic handwarmer will give instant heat up to approximate54o-57oC. ... advice if interest! CE approved Instant Reusable gel Baby bottle warmer for baby feeding