OUTOPEN DIY Hamster Tunnel Tubes Set 5.5cm Diam Transparent Hamster Toy Maze Spacious Ventilated Hamster Movement Tunnel Remodeled Cage

Special Feature: Randomly DIY, U Pipe Color: Blue, Pink, Yellow, Purple, White Package Includes: 1pc Hamster Tunnel Tubes SetSize: 5.5cm(2.17in) Material: Plastic It can build a maze, connect a hamster cage, connect a running ball, and play imagination to diy at will. U-type pipe can change the channel direction. The tunnel caliber is 5.5 cm(2.17 in),that is, 5.5 cm(2.17 in) caliber bathroom+circular connector. The pipeline has a vent, allowing them to breathe freely inside, does not affect them play. Suitable for hamster, golden bear and other pet toys.