Provide larger pets with the same freedom to exercise that smaller pets have enjoyed for years. Bigger pets can now enjoy the world around them inside these colorful oversized exercise balls. Every Giant Run-about Ball includes a Free Carry-about handle that converts the ball into a safe and secure pet carrier . It’s an excellent source of exercise for pet rats and chinchillas plus its a fun roly-poly toy for ferrets and a neat pet carrier for guinea pigs. Available in four assorted colors the Giant Run-about ball also fits perfectly onto Super Pet's Hamtrac Raceway for the safest and most controlled exercise environment. For FerretsGuinea PigsPet RatsChinchillas.