1. **PVC Pipe**: Smooth, clean PVC pipes are a great option. They are easy to clean, durable, and provide a nice, safe space for hedgehogs to explore.
2. **Cardboard**: Cardboard boxes or tubes can be used as tunnels as long as they are free from inks, dyes, and adhesives that may be harmful. Ensure they are sturdy enough to hold up against digging.
3. **Wood**: Untreated wood can be a natural option for tunnels. Make sure to use wood that is safe for pets, such as pine or cedar, but avoid treated wood as it may contain harmful chemicals.
4. **Plastic Containers**: Large plastic containers with holes cut out can serve as tunnels. Ensure the edges are smooth to prevent any injuries.
5. **Natural Fiber Materials**: Materials like seagrass or coconut husk can be used for making tunnels. They are safe and provide a natural feel for your hedgehog.
Always supervise your hedgehog while they are playing in tunnels to ensure their safety, and regularly check for any signs of wear or damage to the materials used. Keeping their environment safe and engaging is key to their happiness and well-being!
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