Lightweight and small in size. Portable to carry.Encourage healthy exercise in a safe way.For hamsters, gerbils or other small animals.Provides interactive fun for pets and the pet owner.Makes a great temporary waiting area to hold your furry friend while you clean your house.(1) How to use the running ball: A. On indoor or outdoor flat ground, place the hamster in the running ball, cover it, and place it on the ground to use. Make sure the hamster is within sight of the owner.b. If the animal cannot run for the first time, it is recommended not to worry. You can leave the hamster in the running ball for 1-2 hours to familiarize the hamster. Remember not to force it, otherwise it will aggravate the fear. After the hamster becomes familiar with the toy, it will gradually learn to avoid obstacles while running on flat ground.(2) The method of installing the cover at both ends of the ball Running: The cover is designed with a concealed buckle. When installing, the buckle position of the cover is aligned with the corresponding position of the racing ball, and the cover needs to be twisted until it is screwed all the way.Size: 12*12*12cmBlue colorQuantity delivered: 1 pieceNote: The data is manual measurement, please allow 1-3cm error, due to differences between light and screen, there will be a certain difference in color, the specific received in kind shall prevail.