Did you know guinea pigs have very fragile spines and should not be placed in large exercise balls or wheels? A pet store may advertise this product and a store employee may even recommend you buy one! Guinea pig spines are not flexible enough and they could be severely injured if forced to use an exercise ball or wheel.
Not only does it strain a guinea pig’s spine, but there is very poor ventilation. The respiratory system of a guinea pig is delicate and requires adequate air flow in order to avoid breathing problems or upper respiratory infections.