PetSafe Heated Wellness Pad Removeable and washable fleece cover^Safety tested to UL standards^Firm pad for additional support^measures 15.8"x25.7"x1.6" Removeable and washable fleece cover Safety tested to UL standards Firm pad for additional support measures 15.8"x25.7"x1.6" For use in the US only. This unit is compatible with all US 110v outlets and are not to be used with 220v international voltage.