Made of quality wood material, safe and durable for use, long serving life. Keep your small animal active, and help them deal with their environment in an entertaining way. Designed for active growing of small pet, suitable for small hamsters, mice other small animal. Great pet gift, show them your love and concern, give them a surprise. Provide a lot of fun exercises, maintain your pets agility, prevent obesity and keep them active. Specification: Material: Wood Size Chart: Optional Package Includes: 1 Hamster Maze Tunnel Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!