Maintain ventilation inside the pipeline, providing sufficient oxygen for hamsters to exercise. 🐹【Sturdy Material】: Use hard plastic to prevent pets from biting it. 🐹【Matching Use】: You can mix and match the outer track at will, and several groups can be spliced together to connect the hamster bathroom of the same diameter. Aazon.co: Wicked Elphaba ≈ Glinda Silhouettes Tote Bag SPRING PARK Hamster Tubes, Adventure External Pipe Set Transparent... 2 Hamsterröhren Kits, DIY Hamstertunnel Abenteuer Externes Not suitable for guinea pigs and overweight hamsters! Hamster tube set is more fun and durable. Hamster Cage Tunnels WishLotus Hamster Tubes With 2 Pipe Connection Plates, Adventure External Pipe Set Creative Transparent DIY Connection Tunnel Track To Expand Space Hamster Cage Accessories Hamster Toys (Clear Hamster Tunnels 🐹【External Space for Your Pet】: The external tunnel expand the space for the hamster cage, thus providing more place for hamsters to move. We provide 2 pcs of advancethy hamster tunnel pipe fitting, they will help you easily install the pipes to the cage. Separable：Easy to Clean. You can also tilt it a bit and give the hamster a challenge. 🐹【Transparent Pipe】: With these hamster tubes, you can see the pet's state in the pipe through the transparent pipe, and better observe the pet's every move.
