Kaytee Woodland Get-A-Way Hideout is made from quality natural pine timber and wooden peg construction - no nails or staples. It provides pets with a natural sense of security, promotes nesting and satisfies chewing instincts. Fully assembled. Ideal for chinchillas, guinea pigs and other small animals. Large size measures 10"L x 8.75"W x 7"H with a 3.75" x 4" opening.