Park Avenue Indoor Hutch. Made from ecoFLEX, which is resistant to moisture, warpping, cracking, or splitting. Designed to be best for your pets and the best for you. Easy Clean (pet Urine simply rinses off and doesn't soak in). No tools are required for this easily assembled product. Maintenance Free.10yr warranty. Stainless steel mesh top for full ventilation. Perfect for small animals. Rollers provide ease of movement.