Dear customer, Thank you for choosing our products. If there is any problem with our products, please contact us through the order information. We will be happy to serve you and solve it for you as soon as possible within 12 hours, thank you! This hamster chew toy is entertaining enough to keep your lovely pets busy for a long period and they do enjoy playing with it. The chew toy allows it to have more room to move and get it exercised Our hamster tunnel made of high quality wooden material, sturdy and durable. All finishes are nontoxic, safe and Ecofriendly. Natural wooden color makes to draw your pets' attention, and they gonna love it! Biting and climbing are small animals' instincts. Our wooden tube can also be used chew toy, which is good for your hamster's health. Great chewing and preening toy to kill time and give dental care for your beloved pets The animal exercise tunnel has many same size holes, attracting and encourage hamsters to climb and explore quickly. This tunnel toy can encourage pets to do more fun exercises, keeping a good health This forest hollow tree trunk is suitable for small animals, like hamsters, mice, rats, squirrel, and so on, it is can be a chewing toy, exercise toy and entertaining toy