Recommend using with "GNB Pet Super Large Hamster Cage" or "GNB Pet Ultra Large Hamster Cage" No glue/nails/screws needed, very user friendly! Rugged inner surface, good for climbing 2 inch diameter tunnel parts Infinite DIY fun! Install these tubes on your pet' s cage to give your cute babies more enjoyable moment! Hamsters, gerbils, mice and other small pets naturally love to tunnel and burrow and so will adore this tunnel kit. You will also love being able to watch your pets explore and play in these fun, colourful, interchangeable tubes. The GNB Pet Tunnel Kit is compatible with the entire GNB Pet small pet line so you can mix and match homes, extensions, tubes and tunnels and expand the fun to your heart's content.
Hamsters are amazing creatures and you'll be surprised at how quickly yours can climb and navigate the tunnels you build.,Recommend using with "GNB Pet Super Large Hamster Cage" or "GNB Pet Ultra Large Hamster Cage" No