The pet cooling mat is made from phase change material and is proven to lower your dog's temperature by 7 degrees for between 2 and 6 hours. The PCM is used within the aerospace and health industries and changes between liquid and crystal formats depending upon the exterior temperature. After use, the mat can be kept in a cool place and the mat will get ready to be used again. It's not toxic and environmentally friendly and can be supply wiped over to remove any hairs, dust or dirt.