Panel heater. I bought it used and used it for a hedgehog for about 1-2 months. I'm selling it because I changed to a larger heater since I made the cage bigger. Can also be used for reptiles and small animals. Can be used for hamsters, sugar gliders, etc. It's a 20W panel heater from Midori Shokai. Size: Approximately 25.5 cm tall, 22 cm wide. It warmed up well. Please check the condition in the images. I'm also selling various other items, so please take a look.