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about 12 inches im not so sure
Nope. I have a dwarf hamster and he has a medium sized ball but its a little to heavy for his weak little body to move. I recomend the smalled ball you can get that way they can go faster and eaiser! Good luck!
a hamster-ball is a ball and in it there is hamster. see my house there will be a hamster-ball. issisabelle is my username
you could. but a hamster ball is dangerous for a hamster so it most likely be dangerous for a gerbil as well.
The pet store, of course!
Place it in. If it bite were gloves
A hamster wheel is used in the cage and is powered by the hamster its self. A hamster ball is what you put the hamster in to exercise when you are cleaning the cage. A hamster ball is heavier so would probably go a bit slower but both are actually powered by the hamster its self so it depends on how fast it goes.
The hamster gets more exercise because he is pushing a ball. Plus it is easier to catch than the hamster itself.
Seven inches
a wheel in its cage or a hamster ball
it depends on the hamster
No, there is nothing wrong with your hamster. My guinea pig never runs around in her ball, and your hamster may just be getting old.