Daniela it is called .....Soft Heat.....Advanced Moist or Dry .....heating pad.....it is what they call a King size 12"x24".....it isant plastic covered as most of them seem to be but a soft material....quilted pad......there are four heat settings the first being just warm ....I usually have mine on the second setting.....it will switch off after an hour but seems to keep warm for ages.......I would imagine you will find one on the web.....good hunting and I hope it helps.....regards Berylx