[Quality Materials] Hamster pipes are made of plastic, sturdy yet easy to disassemble and reassemble. Easy to clean. Perfect toy for hamsters. Capture every adorable moment. [Transparent Pipe] The transparent design allows you to observe your pet's behavior inside the pipe and monitor their movements with ease. [Freely Combinable] Each section of this hamster tube can be disassembled and reconfigured freely, allowing you to create unique play structures based on your own ideas. [Size] The external pipe provides additional space to expand the cage, giving your hamster more room to move. Inner diameter of the pipe is 5.5 cm (approximately 2.17 in). [Fun Pet Tube] These expandable hamster tunnels are designed to connect with other habitats, creating endless living and playing space for your pet hamster, gerbil, or rat. 1. U-shaped section allows directional changes. 2. Suitable for hamsters and other small pets. 3. The pieces connect securely, enabling customizable tunnel configurations. 4. The pipeline features ventilation openings to ensure proper airflow during play. 5. DIY outdoor pipe fittings assembly for hamsters. 6. Encourages healthy play and physical activity. 7. Compatible with multi-level cages, helps expand living space. 8. Ideal for hamsters, gerbils, or mice. Color: Blue Material: Plastic Package Contents: 1 x Long straight tube 2 x Short straight tubes 1 x 3-way tube 4 x Curved tubes Only the above package content is included; other items are not part of the sale. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error allowed is +/- 1-3 cm.