Balls

Freedom, safety, and fun for your small pet's workout Stay-put twist-lock door opens only when you want it to Large access door, large air vents & rounded foot treads ensure comfort A range of sizes suited for mice, hamsters, rats, or smaller pets Perfect for exercise or temporary containment. Shatter- resistant, easy-clean plastic Run-About Balls available in assorted rainbow colors. Use alone or with the Hamtrac Raceway . Size Diameter Suggest For Mini 5 Mice or dwarf hamsters Regular 7 Mice, hamster, gerbils, or smaller Giant 11.5 Rats or smaller Mega 13 Large rats Important: Run-About Balls are interactive exercise toys. Supervision is necessary. To prevent overheating, never use in direct sunlight, and limit exercise time in the ball to several periods of 15 minutes each day to keep... Less