Thank you for viewing my item! I'm selling this because I changed the size of my pet's enclosure. ● This metal wheel features a bearing system on the rotating axis, providing both durability and quiet operation. ● Compared to hamster wheels, this one is larger, making it perfect for larger small animals like tegus, chinchillas, and prairie dogs. ● Size Wheel diameter: 32cm Wheel width: 12cm Overall size: 35 x 17 x 37cm Since I don't have the original box, I will pack it directly and ship it in a cardboard box.