The Natwood, Jerrik, Small Animal House is a wooden hideaway house with a flat roof which provides another level for your little critter to jump and climb on. By providing a place to hide, you are encouraging their natural instinct to burrow, which will also offer extra insulation, especially if you have an outdoors enclosure. Rodents' teeth are constantly growing, there for providing natural wood toys and houses they will assist in healthy teeth and gums. Please check the product regularly for severe bite marks and replace when necessary.