silent Hamster Mini Running Activity Exercise Ball 4.72 Inch Toy Transparent Hamster Ball The product is shipped based on the color or size of the main image of the product page. Product descriptionMade with pet safe materials.Relieves boredom and increases activity level and giving him a fun spot to playIdeal for hamster, mouse and other small furry animals.Encourage healthy exercise in a secure and safe wayMakes a great temporary holding area to keep your furry friend while you clean their home 4.7-inch diameter .For dwarf hamsters, mice, or other small animalsFun exercise toy to maintain your pet's alertness and agility.Provides interactive fun for the pet and the pet ownerIf the pet uses it for the first time and cant play. It is recommended that you do not need to worry. You can leave the little pet in the running ball for 1-2 hours, let the pet become familiar, remember not to be reluctant, or it will aggravate the fear. After familiar with the toy, the little pet will gradually learn to avoid obstacles when he runs on the ground.How To Assemble the Hamster Plastic Ball1.Align the buckle positions of the two hemispheres, buckle up to the correct position, and turn slightly clockwise to lock2.When covering the top cover, pay attention to align the four snap positions , and turn to the right to fix3.Put your hamster into the plastic ball and watch them play on the flat floor