I've just bought my second set of these tubes. The first set lasted my two gerbils two years! They're very durable tubes that can take a lot of chewing. They're also a good width - wide enough even for Syrian hamsters to run through. I would recommend them for small rodents
These are so much better than the tubes we'd been giving our gerbil Rainbow. She gnawed through the others very quickly but these have kept her occupied for weeks. I will be getting more. They are amazing value. Highly recommended.