Pet Hamster Guinea Pig Exercise Running Ball Play Gyro Toy Plastic Funny CP10FeatureCompletely transparent running balls: It will not affect the pet's running vision in the inside, the owner can also see the internal real-time dynamics, the best interactive toys.Porous design: Increase the ball friction and air circulation, pets will not heat or feel difficult to breathe staying inside for a long time.Easy to operate: The blue cover is the entrance for the pet, and a small hole is reserved in the middle. You can provide a bracket to fix the running ball on it and make it into a fixed running wheel.A very suitable toy for hamsters and golden bears: It can give your pet more exercise, or it can be temporarily placed in a running ball when cleaning the pet's room.Safety and environmental protection material: adopt environmental protection plastic material, safe, non-toxic, no smell, please feel free to use. It's 1012 centimeters in size (about 3.934.72 inches).Specifications:Pet Type: HamsterMaterial: PlasticColor: BluePinkDiameter: 1012 cmPackage Included:1X Running Ball