"Build a unique tunnel system for your small pet with Rotastak. 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 Rotastak Tunnel Kit is compatible with the entire Rotastak 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. Each Tunnel Kit includes: 7 x Long tubes. 5 x Adaptors. 3 x Cross roads. 3 x End caps. 2 x Elbow bends. 1 x Short tube."