ferrets love to burrow and will make a tunnel wherever they can. there are so many ferret tunnels and tubes on the market. well, that depends on what you want to do with it and where you plan to put it. this pipe is 4 inches in diameter and unfolds and expands from 2 to 25 ft. you can also get one that expands to 50 ft! you can easily build your own configuration with a complete system of connectors, …