It can provide of fun for your beloved small pets, maintain your pet's agility, prevent obesity and keep them physically healthy. The right size for small pets to run safely. Good structure design, which can attract your pets and increase their curiosity. Relieve boredom and stress, prevent them from producing . Features -Color:Beige -Material: Wood -Size: 29.00X9.50X32.00cm/11.40X3.73X12.58in -Large outer diameter: 29CM/11.4in, inner diameter 28CM/11.02in, Base width: 14CM/5.51in, running wheel width: 9.5CM/3.73in, inner width: 8.6CM/3.38in, overall height: 32CM/12.59in - Fun to play and run, keep them to exercise for maintaining their strength and well-being. - The reasonable size of the running wheel brings your hamster a comfortable running feeling. - Suitable for many small pets playing, a fun toy to keep your small and healthy. - Your beloved small pet can run at night without disturbing others, and your pet won't get hurt when running. - Help them to build own muscle, keep them happy and maintain mental health. Package list: 1 x Hamster Running Wheel