When selecting an exercise wheel, "safety" is the key word. The safest exercise wheel for your gerbil is one that is enclosed or does not have open spaces between the rungs. Gerbils run the risk of catching and breaking or severely injuring their long tails and even their delicate legs, so proper care must be taken in selecting an appropriate wheel.

If you are unable to find this type of wheel, you can purchase a hamster wheel and make some minor adjustments. Take duct tape and simply tape it over, making sure that you cover the struts on the side as well. You can spin some bedding on the inside portion of the wheel to reduce the stickiness of the tape. Those inquisitive, active and curious little gerbils do not find humor in having their feet stuck to tape, so be certain to take this precaution when "reinventing the wheel."