Features: 1. The Hamster Ball Made Of High Quality Materials. Is Very Durable, Hard To Break Down. Damage And Can Be Used At Any Time. Inside Or Outside Outside. 2. There Are Loops On Each Hemisphere And The Lid. You Must Rotate And Secure The Hemisphere And Cover During The Installation Process Before The Ball Can Be Locked In Place. 2. When Cleaning The Cage, You Can Put The Hamster In The Running Ball To Prevent It From Escaping.Tips: 1. If Your Hamster Is Using The Hamster For The First Time, It Will Not Work. DonT Worry, You Can Put Your Hamster In The Walking Ball For 1 To 2 Hours. 2 Hours To Familiarize Yourself With The Surrounding Environment Without Being Afraid. 2.After Waiting For The Hamster To Become Familiar With The Toy, It Will Gradually Run Around And Learn How To Play. Avoid Obstacles.Specification: Material: Pvc, Pp Size: 12Cm In DiameterColor: Transparentset Contains: 2X Ball Hamster We Are Committed To; Provide The Best Service To; Each Customer.