Ericetion 4pcs Hamster Tunnel External Tube Stopper Plug End Cap Interface Fitting with Ventilated Holes Hamster Cage Baffle

• Made of high quality plastic, sturdy, easy to assemble and take apart for cleaning.
• Inner diameter: 2.17 inch, great for hamsters, ferrets and rats, guinea pigs and small pet.
• Tunnel External Tube can be used outside the cage. The small hole design of the interface plug can better the baby hamster from hypoxia in the tunnel.
• Any external pipe cage can be connected as long as the size is the same.
• Used for blocking the exit, prevent baby escape.

Specification: Package include:. Color: Random Color. Material: Plastic. 1 X Hamster Tunnel Plug(other accessories demo in the picture is not included.). Inner diameter: app. 5.5cm(2.17in). Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.