This is the Marukan Far Infrared Hot Heater Mini. I used it for 2-3 years during the winter. I didn't find any bite marks or stains. I will disinfect it with alcohol before shipping. Product Description Far infrared rays that warm you from the core of your body ・Washable for easy cleaning of dirt and odors ・Flip it over! Reversible "Mom's body temperature setting" Warms up well: High temperature approx. 38°C (Low temperature approx. 30°C) ・1 day (8 hours): Approx. 1.8 yen (when 1kWh = 27 yen) ・Metal tube covers the entire cord for mischief prevention ・L-shaped plug for a neat outlet area Power supply: AC100V (50/60Hz) Rated power consumption: 8W Surface temperature (at room temperature of 18°C) High temperature side: Around 38°C Low temperature side: Around 30°C Safety device: PTC・Fuse Weight 350g Body size (mm) W230 x D160 x H14.5mm Power cord: 1m Target animals Extra small dogs and cats in general Thank you for viewing.