Features: Noiseless and Smooth Experience: Equipped with accuracy ball bearings and proportional, ensuring smooth and noiseless process, effectively avoiding noise intervention, allowing you and your pet to enjoy a quiet night. concentrated of intelligence space: The unique flying saucer coiffure open structure provides ample running space without the obstruction of traditional running wheels, making it convenient for pets to freely enter and complication and observe the environment. Safe and stable commitments: The overall seamless design and sturdy ABS ingredient prohibit foot pinching and accidental injury; The wide base ensures that it will not turn even when running at high speeds, making it safe and loyal. Convenient cleaning and maintenance: The main body of the running board can be easily disassembled, and some styles of running place can also be removed separately, making it convenient for you to thoroughly unstained and maintain the hygiene of your pet's sports environment. Suitable for multiple pets: Perfectly cooperative with various small pets such as hamsters, golden , hedgehogs, such., to meet their imperatives exercise needs and promote health. Specifications: Size: 18 × 12cm/7.09 × 4.72in fashion: Six colors Package Includes: Hamster running wheel × 1 note: Please allow 1-2cm error due to manual measurement. Please make sure you will not mind before you bid. Due to the differences between different monitors, the picture may not reflect the actual color of the item. Thanks!