Help keep your amigo active with the Brytin Silver Surfer Chinchilla Exercise Wheel. This exercise wheel for chinchillas is designed to provide entertainment and minimize obesity. It’s perfect for slow or non-producing breeding females who may be overweight. This chinchilla exercise wheel is constructed with a 14.5-inch diameter lathe-spun aluminum wheel and a four-inch solid aluminum running path to help prevent injuries. It features a maintenance-free bearing as well as a powder-coated wheel and mounting bracket.