Most parts of a hamsters life will be spend inside the wheel - running several miles each night on the search for food. So the question "Which sort of wheel should I provide ?" is one of the most interesting questions after choosing the cage.

Hamsters needs these exercise ! Keeping a hamster without the opportunity of running in a wheel is absolute inadequate (gentle spoken).

To enjoy running in his wheel, the wheel

• must be big enough for your hamster- if your hamster is running in a "U"-shape, the wheel is too small!
• should have a solid floor, to prevent serious injuries caused be legs slipping between the rungs
• should not have vertical bars (like the wire-wheels have to connect the wheel with the axis), cause they could work like guillotine, esp. if you have more than one hamster in the cage

	Wire wheels in different forms. Not the best choice. See DangerZone, Wire Wheels for my point of view and how to make wire wheels a bit more secure.
	Standard plastic wheel. If they have rungs, they should be avoided. The solid-floor wheels could be used for dwarfs and young syrians. Cause of the small diameter of these standard-wheels, syrians will grow out of them very soon.
	Wodent wheels - the best possible choice ! They are a bit expensive compared to plastic- or wire-wheels, but they are "a class of it´s own" and worth the money. See their WebPage for detailed informations.
	These Hamster-Exercise-Balls are delivered with a stand, so you can also use them inside the cages as a wheel.