Product Dimensions:17 x 15 x 12 cm; 550 Grams Breed Recommendation:Small Breeds Pet Life Stage:Adult Allergen Information:Kamut Free Colour:Wood Care Instructions:Spot Clean Special features:150 Specific Uses:Indoor batteries required:No Batteries Included:No EU Energy Efficiency Label:C Item Weight:550 g Specification: Item Name: Hamster Wheel Material: Wood Color: As Shown Wheel Diameter: 21cm/ 8. 3" Wheel Width: 13cm/ 5. 1" Base Size: About 21* 16. 5cm/ 8. 3* 6. 5" Total Height: About 23cm/ 9. 1" Note: Please allow 1- 3cm ( 0. 4- 1. 18" ) difference due to manual measurement and slight color variation for different display setting. Package Included: 1* Hamster Exercise Wheel ( Simple Assembly Required ) About this item Safe and Healthy Material : The gerbil wheel is made of high-quality solid wood, with a special waterproof layer on both sides, which is easy to clean, you can directly rinse it with water and then wipe it with a towel. Natural wood is scratch-resistant and bite-resistant, making it a harmless chew toy for your pet. Silent Hamster Wheel : Our wooden guinea pig wheel adopts bearing structure, which ensures smooth running and no noise as long as it is properly installed. Even if your hamster runs at night, it won't disturb your sleep. Essential Small Animal Exercise Wheel : Our hamster running wheel can stimulate the exercise potential of pets, help them exercise, keep healthy, and prevent diseases caused by obesity. At the same time relieve loneliness and boredom and bring joy to your furry critters. Your little pet will love this gift very much. Need to Install : The package contains hamster wooden wheel, bracket and nut accessories. You have to install it by yourself after you receive the wheel. The spliced wooden block design prevents slipping, and the stable base design can be used to decorate cages, glass tanks and other small animal habitats without tipping or crushing your pets. Applicability : 8.3 inches in diameter. Suitable for hamsters, guinea pigs, mice, gerbils, chinchillas and other rodents. Please match your pet's size before purchase. See more product details Safe and Healthy Material : The gerbil wheel is made of high-quality solid wood, with a special waterproof layer on both sides, which is easy to clean, you can directly rinse it with water and then wipe it with a towel. Natural wood is scratch-resistant and bite-resistant, making it a harmless chew toy for your pet. Silent Hamster Wheel : Our wooden guinea pig wheel adopts bearing structure, which ensures smooth running and no noise as long as it is properly installed. Even if your hamster runs at night, it won't disturb your sleep. Essential Small Animal Exercise Wheel : Our hamster running wheel can stimulate the exercise potential of pets, help them exercise, keep healthy, and prevent diseases caused by obesity. At the same time relieve loneliness and boredom and bring joy to your furry critters. Your little pet will love this gift very much. Need to Install : The package contains hamster wooden wheel, bracket and nut accessories. You have to install it by yourself after you receive the wheel. The spliced wooden block design prevents slipping, and the stable base design can be used to decorate cages, glass tanks and other small animal habitats without tipping or crushing your pets. Applicability : 8.3 inches in diameter. Suitable for hamsters, guinea pigs, mice, gerbils, chinchillas and other rodents. Please match your pet's size before purchase.