Marukan Far-Infrared Hot Heater M This heater warms your pet from the core with far-infrared rays just by being on it. The main body is made of hard plastic, making it difficult for claws and teeth to penetrate, so it's less likely to break even for pets that tend to chew. I used it for a hedgehog and then for winter insect control for crickets. I've had it for 5 years, and it's been working without any problems. The scratches are from the hedgehog. There are no instructions or box. I will wrap it in bubble wrap for shipping. I used it normally during the winter, so please understand. Small animals Reptiles Hedgehog Rabbit Hamster Animals