This is a 160mm x 160mm MP-908 model, an 8W temperature-adjustable heating device. It can be used for tropical fish, insects, small animals, etc. I bought it for around 5,000 yen and used it for about a week. After that, I switched to a larger aquarium, so it no longer fit and has been in storage. Brand: Vivaria Indoor/Outdoor Use: Indoor Power Source: Corded Electric Heating Method: Radiant Product Dimensions: 16cm depth x 16cm width Recommended Use: Ultra-thin heater to be placed under the floor of a breeding container such as a cage. Temperature-variable PTC panel heater Automatic temperature control Pet-friendly far-infrared radiation There are small scratches on the back, but the surface is clean. - Model: MP-908 - Size: 160mm x 160mm - Voltage: AC100V 50/60Hz - Power Consumption: 8W Please refrain from price negotiations. #Heating Pad