Regular Tunnels have approximately a 4.5" opening at each end.
Our REVERSIBLE tunnels are warm and snuggly and most hedgehogs enjoy them.
**please note... inside fabric color may vary from what is pictured**
Great for other small pets as well... such as rats, ferrets, chinchillas, guinea pigs, etc...
Remember to always check for loose threads or damaged fabric because a loose thread could easily wrap around a leg and cut off circulation.