Kaytee Woodland Get-A-Ways are classic, natural solid-wood hide-outs for small animals. Constructed from quality pine timber, these fun hideaways provide pets with a natural sense of security. With four great sizes, there is a perfect size for any small animal pet. Provides small animals with a hideout, promotes nesting, and promotes chewing instincts All natural wood is safe for animals 4.5" long, 5" wide, 3.25" high For dwarf hamsters, mice, or other small animals