Ware Manufacturing's Small Sized Twig Tunnel is a fun and cozy option for your pet to hide and play. Made out of all natural hand woven willow, this twig tunnel is completely safe for your pet to chew. Your pets will love to hide in this twig tunnel which provides your critters a sense of safety and security which leads to a happy pet. Ware Manufacturing's Twig Tunnel is great for trimming and cleaning pets teeth which promotes positive chewing behaviors. Perfect hideout for gerbils, hamsters and mice. Measures 4" Width X 5-1/4" Depth X 4-1/2" Height.