Wooden arch-shaped small animal house, natural texture for peace of mind. - Material: Wood - Design: Arch-shaped - Hole Diameter: Large entrance - Use: Small animal house - Features: Natural wood texture I purchased this to use as a staircase for my Richardson's ground squirrel's cage, but they didn't use it at all. There is a small hole that was there originally. Please check the 4th photo. Thank you for looking.